Ai Yori Aoshicould have had this, with Kaoru between the sweet, innocent Yamato Nadeshiko Aoi (Betty), and the wilder, worldly Blithe Spirit Tina (Veronica). This would have also reversed the usual color coding, as the former is brunette (sorta), while the latter is blond. However, the Veronica never really had a chance, in this case.note Tina is still "innocent" in one way (ie, still a virgin).
Aku no Hana has Saeki (Betty) and Nakamura (Veronica), this being a very dark take on both.
In Angel Densetsu there's Ikuno as the Veronica and Ryoko as the Betty.
If Setsuna of Angel Sanctuary is Archie, then Demon Princess Kurai is Veronica and sweet, kind-hearted Sara is Betty.
Official parodies for Attack on Titan portray Eren as the clueless Archie to Mikasa (Betty) and Annie (Veronica). In the main canon, there are implications of such a dynamic, but it's left ambiguous due to the series' avoidance of romance.
And just in case your head isn't spinning enough yet, there are numerousfanon combinations of other characters with many of them bouncing back and forth between the Betty and Veronica roles depending on who their designated romantic rival is. To list all of them would take up half of this page, especially since this fandom is way more prone to OT3s than most other fandoms.
Beck has Koyuki as the Archie, his sweet childhood friend Izumi as the Betty, and free-spirited Tsundere Maho as the Veronica.
Beelzebub has Aoi and Hilda, Oga Tatsumi's romantic options. Aoi (Betty) is human, and kind-hearted despite being a delinquent. Hilda (Veronica) is a demon who dresses in black and is very cold and dismissive to Tatsumi. Due to circumstances involving Hilda imposing herself in Tatsumi's home, this perspective is inverted in-universe, with Tatsumi's classmates calling Hilda and Aoi "wife and mistress", respectively.
Played slightly different in Bitter Virgin: Main character Daisuke initially has two primary suitors who each view the other as her biggest rival in love, Yuzu, the childhood friend who's fiercely straight-laced, and Kazuki, the most stylish girl in the class. However, in this case neither is the true love interest; that title goes to the Shrinking Violet Hinako.
Bleach: The kind and pacifist Girl Next Door Orihime Inoue looks like a good Betty and the Tsundere Rukia seems to be a nice Veronica. Ichigo and Rukia are considered more than friends but less than lovers; on the other hand, Orihime already confessed her love for Ichigo but he wasn't conscious at the time to hear. Ichigo is more than willing to scale both Soul Society and Hueco Mundo in order to rescue both of them (in separate arcs) and has the 'other' help participate in the rescue: Orihime is the Barrier Warrior and healer in Soul Society who actually came up with the idea of rescuing Rukia, while Rukia recovers her Action Girl credentials by the time the Hueco Mundo arc kicks in and joins Ichigo's quest for Orihime heartily.
In Blue Comet SPT Layzner, the cute-looking Anna Stephanie (Betty) and the tomboyish Simone Reflanne (Veronica) were tailor-cut to be this to The Hero Eiji Asuka. The series finishes with Eiji and Anna as the Official Couple, and with Simone staying with Eiji's Lancer David Rutherford.
In Bokura no Hentai Ryousuke's girlfriend Miki is the "Veronica" to Marika's "Betty". Ryousuke likes his girlfriend but harbors a crush on Marika that's hard to resist. He eventually dumps Miki to confess to Marika but that goes nowhere. The Distant Finale has a Maybe Ever Afterfor Ryousuke and Miki as adults.
Sakura has Yukito (the Prince) and Syaoran (the Bad Boy). Played with in the end: Yukito ended up with Sakura's brother, and by the time Sakura fell for Syaoran, he was far more of The Prince than the Bad Boy.
In the anime, Syaoran has Sakura (Betty) and Meiling (Veronica). Again, Sakura and Syaoran get together, and shortly before that Meiling says "I Want My Beloved to Be Happy!".
Death Note has Misa as Betty and Takada as Veronica when it comes to Light. A genderswapped version in the Death Note spin off novel Another Note: The Los Angeles BB Murder Cases is Beyond Birthday as the Veronica and Raye Penber as the Betty to Naomi Misora's Archie.
Subverted in Double Arts. When "Betty" (Ellie) tentatively inquires about Kiri's feelings for the obvious "Veronica" candidate (Sui), he practically goes into a Heroic B.S.O.D.. Turns out they already tried dating. And she dumped him. Three times. So much for thatLove Triangle...
Elfen Lied gives Kouta (Archie) the conflicting and very different love interests Lucy (Veronica) and Yuka (Betty).
Full Metal Panic! inverts this: Chidori is the Veronica despite being the Ordinary High-School Student, while Tessa, who is a captain in a covert paramilitary organization and has command of a submarine and several hundred troops, Sousuke included, is the Betty personality-wise.
Ryuuichi Kashima, the protagonist of Gakuen Babysitters have two girls crushing over him: the shy and gentle Ushimaru (Betty) and the Ice Queen Inomata (Veronica). However, due to the lack of focus on actual romance in the series, the Love Triangle dynamics are rarely focused, and the two girls are frequently more intimate with each other than with their crush.
Gantz has calm, reserved normal Tae as Betty to Reika's Veronica, which it averts by Reika's cloning of Kei.
GE - Good Ending has Shou and Yuki for Seiji, the protagonist. One is bubbly, the other one is more serious. One comes from a mid-class family background, the other one from a high class family. One is blond, one is black-haired.
Mobile Suit Gundam: Mirai (Archie), Bright Noah (Betty), Liutenant Sleggar (Veronica) and Cameron Bloom (Third-Option Love Interest). Sleggar dies few after he and Mirai share a kiss, Cameron is soon out of the picture until the Char's Counterattack movie, Mirai marries Bright.. Also Lalah Sune (a very... strange Archie), Amuro Ray (Betty) and Char Aznable (Veronica) And then Lalah dies protecting Char from Amuro.
Gundam X: Garrod Ran (Archie), Tiffa Addil (Betty) and Ennil El (Veronica). Tiffa already had the first round won since Garrod had a huge crush on her from the start, so she wins in the end too.
G Gundam: Domon Kasshu's Archie is at one point stuck between Rain Mikamura's Betty and Allenby Beardsley's Veronica.
Gundam Seed: Kira Yamato's Archie has to pick between Lacus Clyne's Betty and Flay Allster's Veronica.
Gundam AGE: Flit Asuno (Archie), Yurin L'Ciel (Veronica), Emily Amonde (Betty) Yurin dies horribly, so Emily "wins" by default. While being aware that Yurin is The Lost Lenore, though. And later there's Romary (Archie), Asemu (Betty) and Zeheart (Veronica). Bonus for the Ho Yay between Asemu and Zeheart. Romary is... very confused but ultimately chooses Asemu, since Zeheart is an Anti-Villain.
Hamtaro has a genderswapped example with Pashmina (Archie) as the love interest of both Dexter (Betty) and Howdy (Veronica).
In Hana Yori Dango, the heroine Tsukushi Makino is the object of both Rui's (the calm, supportive Betty) and Domyoji's (the violent, passionate Veronica) affections. Subverted in that Makino initially has unrequited feelings for Rui, while it is Domyoji who has (initially) one-sided feelings for her, and in that the Veronica triumphs.
Haou Airen: Kaafai (Betty) and Hakuron (Veronica), for Kurumi. Until Kaafai goes Yandere too.. and kills Hakuron. There's also Kurumi (Betty) and Reilan (Veronica), for Hakuron. Until Reilan deploys a Thanatos Gambit.
Then played with; Shrinking Violet but exotic mermaid and human but Broken Bird witch. Though Tatsuya shows more attraction to Seine, he still can leave Sheila alone when she's in trouble.
The Hellsing anime has a twisted, 'sort of' affection triangle between Alucard, Integra Hellsing, and Seras Victoria that creates an animosity between the women. While Seras looks as the Veronica (being the one with sultry clothes and the newest addition to the Hellsing group) to Integra's Betty (long-standing bond with Alucard and with more tomboyish traits), personality and role wise could be switched: Integra's the Rich Veronica that has Alucard's affection while Reliable Betty Seras longs for it. Studio Gonzo claims that in the Anime, Alucard actually turned Seras because her eyes reminded him to Integra during her youth, but he was mistaken. The manga averts this situation with an emphasis on a platonic bond between Alucard and Seras, but curiously adding Les Yay subtext between Seras and Integra, and having Pip Bernadotte as Seras' Love Interest.
Highschool of the Dead presents Rei and Saeko's ongoing Love Triangle with Takashi as the Light Feminine and Dark Feminine equivalent: Rei is the down-to-earth 'wholesome girl' and childhood friend of Takashi, who's plainly stated her feelings for him. By contrast, Saeko freely admits to preferring to be the seductress, so she uses her sex appeal instead. This is also reflected by the difference in how they dress. Rei's school uniform is essentially the same as it's always been with the addition of knee pads and elbow pads for protection. Saeko modified hers with lacey black thigh-high stockings, stiletto-heeled boots, and a matching black miniskirt that has a split-seam so high, it flashes her panties when she walks. When Rei and the others see what she's wearing, Rei calls her out on it:
In Higurashi: When They Cry, there are two different triangles that could be seen as this. The easier one is between Rena and Mion, with Rena as Betty and Mion as Veronica. Earlier, the twins Mion and Shion are set up as another one of these, but it's a little harder there to say who'd be Betty and who'd be Veronica. The best assumption would be Mion as Betty and Shion, who is introduced as a bit of an outsider and certainly has a bit more danger to her, as Veronica.
Takemoto (Betty) and Morita (Veronica) both fall in love with Hagu in Honey and Clover. Even though Morita wins Hagu's affections, neither of the guys end up with her.
In I'm Gonna Be an Angel! Noelle is Betty and Natsumi is Veronica for Yuusuke. Also, Muse is Betty and Silky is Veronica for Eros.
Ordinary High-School Student Kagome is the Betty and Dark Magical Girl Kikyo the Veronica. Solved when Kikyo dies for a second time but now is able to go in peace, so Inuyasha finally lets go of his regrets and stays with Kagome.
In an anime episode, Sango has Kuranosuke Takeda, the admiring nobleman who asks her to marry him, as the Betty against Handsome Lech Miroku as the Veronica. In this case, the deck is heavily stacked against Kuranosuke, since marrying him would also require Sango to give up her quest for Revenge; she chooses to continue the journey, Kuranosuke does not appear again, and Sango and Miroku end up Happily Married in the Distant Finale.
The one-episode Love Triangle from Kaleido Star had Sarah as Archie, Kalos as Betty, and Andy as Veronica. Sarah chooses Kalos — in fact, she had chosen him quite a while before and that's why she had stayed in the Stage in the first place. Andy never really stood a chance, and he immediately acknowledges it.
Kimi ni Todoke has two that overlaps, Sawako is Betty and Kurumi is Veronica for Kazehaya, who is the Betty and Kento is Veronica for Sawako. Color inverted since Sawako and Kazehaya are dark-haired.
Gender-flipped in Kimi Wa Petto. Sumire, the tall, smart and successful businesswoman, made a rule that she would only date her equal. One day, she finds a down-on-his-luck dancer sleeping in a box and... takes him on as a pet. She names him Momo and they form a relaxed, if unusual relationship. Soon after this, Hasumi (Betty), her tall, dark and intelligent sempai from university appears. He's everything she's been hoping for, but when they start going out, she feels that she has to present her best side at all times, instead of the unconditional, doglike affection offered by Momo (Veronica). The dramatic tension between "I can be myself around him" and "He's everything I ever wanted" drives the plot.
In The King of Fighters: KYO manga (a Spinoff from the KOF games), there are several prospect love triangles like this:
At first, Kyo Kusanagi is the Archie to Yuki's Betty and Athena Asamiya's Veronica. Since Yuki is already Kyo's girlfriend when Athena comes into Kyo's school to be closer to him and see how his powers are like, she "wins" this round.
With Athena as Archie, then Kyo switches to the Veronica while Sie Kensou is the Betty. As said above Kyo stays with Yuki, but Athena never really "switches" to Kensou anyway.
Later, due to a series of meddling and misunderstandings, Yuki becomes the Archie with Kyo as Veronica and Takaya Maeta as Betty. Maeta does get a serious chance to get closer to Yuki and Kyo has other matters to attend... but ultimately he gets better, Yuki stays by his side, and Maeta relents.
Love Hina has a pretty basic version of this: Cloudcuckoolander Mutsumi versus Tsundere Naru. Keitaro, however, makes his preference the latter quite transparent halfway into the series, no matter if she's the little girl of the promise or not.
Love Pistols had one during the summer trip to the Madarame household. Norio becomes the Archie to a cold, aggressive and increasingly distant Kunimasa(Veronica) and a caring, sweeter and openly in love with him Hidekuni(Betty).
In Maid-Sama!, Misaki is the Archie, with her childhood friend Hinata as the Betty and her mysterious, popular, wealthy love interest Takumi Usui as the Veronica. Interestingly Hinata is a brunette while Takumi is a blond.
Macross in all its incarnations is actually built around this:
Super Dimension Fortress Macross had Lynn Minmay as the Veronica and Misa Hayase as the Betty. Minmay herself had a similar case, with Hikaru as the Betty and Lynn Kaifunn as the Veronica.
Macross 7 had a gender-reversed version of the trope, with Gamlin as the Betty and Basara as the Veronica.
Macross Frontier has Ranka as the Betty and Sheryl as the Veronica. In the second movie, The Wings of Goodbye: The End of the Triangle, it's resolved. Alto apologizes to Ranka for being unable to return her feelings and declares his love to Sheryl before going Missing In Action. Word of God confirmes Alto comes back, Sheryl wakes up and their relationship ensues.
Magic Knight Rayearth has a few possible instances of this trope, both male and female. Hikaru likes both Eagle Vision (Betty) and Lantis (Veronica). Umi is loved by Ascot (Betty), but she likes Clef as well (Veronica). And both Emeraude (Betty) and Alcyone (Veronica) are in love with Zagato- but he only loves Emeraude and dislikes Alcyone very much.
Maison Ikkoku has a male version where Kyoko has to choose between the awkward, indecisive, but fundamentally kind-hearted Godai (Betty) and the suave, flashy Mitaka (Veronica). Godai himself encounters an interesting variation on this trope: although he has romantic options that play the Betty and Veronica options straight (his good-natured fellow student Kozue and his outspoken, sexually aggressive pupil Ibuki respectively), his true romantic interest, Kyoko, is a blend of the two types, as she is both a responsible, supportive, somewhat traditional young lady AND an independently minded woman with a temper who is unafraid to criticize Godai or defy her parents when necessary.
In MÄR, Snow and Dorothy are the Betty and Veronica respectively towards Ginta. In the manga, nothing is really resolved and both stay behind in MÄR Heaven, although Ginta eventually hooking up with Snow's real-world counterpart Koyuki isn't out of the question. In the anime, Ginta resolves things with Dorothy by explicitly not choosing her. Snow merges with Koyuki to become one whole person to be with him on Earth, and the ending heavily implies a mutual relationship occurs, so in this case, the Betty wins.
In Mekakushi no Kuni, Arou (Betty) and Namiki (Veronica) are rivals for Kanade's affections, even though Arou wins from Volume 2 onwards.
In Nana, rock star Takumi would probably count as a male version of Veronica for Hachiko while Nobu serves as a male Betty.
Nana to Kaoru tries its best to steer clear of this. Kaoru is the Archie, but A) Tachi, the supposed Betty, is the Secret Keeper of Nana & Kaoru's 'breathers' and acts more like a little sister, continually trying to push them together; B) Kaoru has ZERO interest in Tachi; C) the titular couple are afflicted with oblivious to each other's love on a Charlton-Heston-epic scale and D) the whole thing is skewed by the fact both get tied up by him.
In Naruto, there's a weird variation. Naruto, of course is the Archie, who is attracted to Sakura (Veronica), who acts all Tsundere towards him and is in love with Sasuke. Watching from afar is Hinata (Betty), who has admired Naruto since childhood and has been in love with him for years. The weirdness comes in when one brings up of social classes, where Hinata has the Veronica trait of being the heiress of a major clan (probably the closest the village has to a princess barring Tsunade), while Naruto, for all of his childhood and most of Part I, was the village pariah — socially speaking, a relationship between them would be unacceptable. This obstacle for any potential relationship between them was removed when Naruto became the village hero, and became gradually clear to the people of Konoha that he was the son of the Fourth Hokage. The series ends with Naruto and Hinata as the Official Couple, while Sakura ends up with Sasuke.
In Nisekoi, we have Kosaki, the gentle Girl Next Door whose family owns a bakery as the Betty and Chitoge, the aggressive Tsundere daughter of the leader of a mafia as the Veronica. In a twist, Kosaki is the one Raku is chasing after, but he's forced to pretend to be dating Chitoge to prevent their families from starting a gang war.
In Peach Girl, Momo spent years with a crush on the chivalrous and polite Toji, until she finally gets him. They guy helping her out on the way is Kairi, a lecherous, school-skipping bad boy she discovers she now has feelings for. Throughout the series she bounces back and forth between them, until finally she ends up with Kairi.
Prétear seems to set this up between Himeno, Sasame and Hayate, especially in the manga. The anime is more... complicated.
Princess Tutu plays with this trope in a way that approaches Cyclical Trope levels. First, there's Fakir (the Tsundere Bad Boy) and Mytho (the Prince) for Ahiru. However, their roles are subverted in the second season with Fakir as the Betty to the Raven Prince Mytho's Veronica. On the other hand, while Ahiru seems The Betty to Rue's Veronica... Rue's certainly The Betty to Princess Tutu's Veronica for Mytho. And bringing Princess Kraehe in this, this starts all over again. Plus, Autor could be the Betty for Rue while Mytho is The Veronica.
In Psychic Academy, this is played quite obviously through the Betty-esque Orina (AKA Sara), Ai's childhood friend, and the Veronica-esque Mew.
With Akane as the center figure, the bumbling Gentle Giant Ryoga can be considered the Betty to Jerk with a Heart of Gold Ranma's Veronica. And with Ranma as the snarky yet ultimately well-intentioned Betty to Kuno's delirious, hammy Veronica.
In Ratman, Shuto's female admirers are both a mix of Betty And Veronica traits while still in stark contrast to one another. On one hand is Mirea Mizushima, his exotically gorgeous Yamato Nadeshiko classmate whom he's known for some time, however her family are the ones who turned him into the Anti-VillainProtagonist, Ratman. On the other hand is Rio Kizaki, who better fits the "cute and spunky" type, but is also the wealthy and tomboyish daughter of the Hero Association's president, and the two of them bond over their shared dream of being heroes.
Male example in Rose of Versailles: Andre is Betty and Fersen is Veronica. But Oscar realizes that her feelings for Fersen were just infatuation and that she truly loves Andre. And every woman in the kingdom has a crush on Fersen. And Fersen does not return Oscar's love.
In School Rumble, Harima initially has his sights set on Tenma alone but it's clear from the start that he has no chance of winning her heart as she's already in love with Karasuma. The two girls who do express interest in him are Tenma's sister Yakumo and local OjouEri who fit the Betty and Veronica dynamic well.
In The Seven Deadly Sins to Meliodas, Elizabeth's a royal Betty due to being a generally calm regular human while Diane's a common Veronica due to being a clingy easily jealous exotic giantess.
In Shakugan no Shana, Yuji has the sweet and ordinary schoolgirl Kazumi Yoshida as the Betty and the Tsundere mysterious monster fighter Shana as the Veronica.
In Tenchi Muyo!, Ayeka is clearly the Betty (traditional, reserved) to Ryoko's Veronica (sultry, unreserved). And then it's subverted because some side materials reveal that Ayeka, who's seen as kinda prudish in canon, actually has more knowledge of S&M than most Betties have...
To Love-Ru: Lala is the obvious Veronica, while Haruna is the obvious Betty, the twist being that Haruna is the one Rito chases (their inability to confess to each other is a Running Gag after while). Although Lala does end up bringing the two closer together (Rito goes from hyperventilating in Haruna's vicinity to being able hang out with her in a large group of friends).
Not anymore when other girls eventually become attracted to Rito, making the Love Triangle between him, Haruna and Lala morph into a Love Dodecahedron and pretty much all of them have balanced screentime.
Urusei Yatsura has the normal childhood friend Shinobu as Betty and the hot alien oni princess Lum as Veronica initially. Shinobu was meant to be the winner, but Lum's unexpected popularity forced Rumiko to change the Official Couple and Shinobu soon lost any interest in Ataru.
Voltron has a male version. Boy Scout Keith (Betty) and Evil Prince Lotor (Veronica) both love Princess Allura. But Allura only loves Keith- so this may actually be a subversion. Some fans try to pair up Allura with the rebellious Lance (Veronica)- but in the canon anime and other series they show absolutely no interest whatsoever in each other.
Wandering Son had this early on, between siblings. It was between Bratty Teenage Daughter Maho, her gentle transsexual younger sister Shuuichi, and the boy who the former was attracted to who had accidentally fallen for he sister when she was dressed as a girl. Shuu shows no attraction to Riku and by one year in-series Riku and Maho are a couple. They stay a pretty happy couple past high school, though Riku occasionally blushes at Shuuichi.
Your Lie in April has reliable childhood friend Tsubaki as Betty and wild, mysterious cheerful musician Kaori as Veronica for Kousei's Archie. At the end, Kaori dies and while Tsubaki makes clear her intention to always be by Kousei's side, it's obvious he's not ready to settle things with her.
In Yu-Gi-Oh! (particularly the manga), Anzu Mazaki is shown being torn over her feelings between shy Covert Pervert Yugi Mutoh (Betty) and his darker alter ego Yami (Veronica). The show ends with nothing resolved.
Briefly pops up in the third season of Yu-Gi-Oh! GX for Judai: Asuka is Betty, as at this point she's been a good friend of his for months now, and Johan is Veronica, as he's a mysterious foreigner with an "unusual" destiny. There's also Yubel, who's mostly Veronica (being the villain), but with streaks of Betty (she's Judai's Forgotten Childhood Friend) and Cheryl Blossom (she's the last one introduced) thrown in. Yubel wins.