These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Tsubasa Reservoir Chronicle
Abandon Shipping: Singularly one of the funniest in any fandom. The very heated Shipping War between the Kuro-Fai fandom and the Kuro-Tomoyo and Fai-Chi shippers came to an abrupt halt post Celes and Nihon Arcs when CLAMP themselves dealt the deathblow to the latter two fandoms, after which the shippers either stayed very very quiet, or jumped onboard the Kuro-Fai ship as quickly as they could. Probably had something to do with realising they'd be pairing Fai with a girl based on his mother, or pairing Kurogane with a girl younger than him. Not to mention that Tomoyo will always love Sakura, and the manga made a lot off effort to establish the connections and symbology between Fai and Kurogane, and Fai-Chi would never work, considering she already has a significant other.
In another hilarious Abandon Shipping moment, a large portion of the Syaoran/Sakura fanbase has jumped ship as of the revelation that Real!Syaoran is the son of his and Sakura's reincarnated clones. For a while there was a share bit of confusion about which ship to abandon, but it seems to have settled down now that the manga has ended.
Crowning Moment of Awesome: Although every character has one or two, one scene stands out a lot: The fight scene between the two Syoarans in the Dream World might be one of the best action scenes Clamp ever made next to the final Subaru vs Seishiro. First of all, the area feels like a tribute the X/1999 dream scenes, the characters' movements are incredibly detailed, the two fighters employ lots of skills even if it lasts short, there is magic, drama and the ending comes with a big Tear Jerker. The Ovas gets some points for adding fitting background music. Not for nothing the Ovas kept promoting this scene.
Crowning Moment of Funny: Essentially any time the team (sans Kurogane) gets drunk. Plus, any Fai and Kurogane double act (at least in the earlier half) and Kurogane and Mokona double act. Also, any time Fai and Mokona team up on Kurogane. The poor guy never catches a break.
Die for Our Ship: Illogically, Sakura and Tomoyo are occasionally subject to this vis-a-vis the Kuro/Fai 'ship. Despite Sakura clearly being into Syaoran and Tomoyo being into, well, Sakura. The inverted trope appears in fics that use Sakura as a means of furthering the Kuro/Fai shipping (often to restore the "happy family" dynamic).
This was in large a retaliation from the Kuro/Fai fandom towards the Kuro/Tomoyo and Fai/Chi shippers who felt the need to flame anything the Kuro/Fai fandom posted, despite CLAMP's assertions that people are the same no matter what universe. Needless to say, this lead to insane amounts of Ship-to-Ship Combat that only intensified after the dub came out and onevoice actor who hadn't read the manga decided to comment on the shipping wars.
It has pretty much gone back to what it was though.
Esoteric Happy Ending: Think about all the rules of dimesion travelling the manga tells. Time in different worlds flow differently meaning the R!Syaoran might return to Clow once R!Sakura is close to her death. Also, even if he returns Syaoran is forced to leave once again. Watanuki managed to overcome his curse but after a century since his magic powers increased and his life span increased. However, Syaoran's magical powers aren't that strong meaning he will die before he manages to overcome the curse. And let's not forget that dream that prevented Sakura from leaving with Syaoran. There might be another threat.
Ensemble Darkhorse: The vampire twins, Kamui and Subaru, and the sibling hunters, Seishirou and Fuuma. When the manga ended, a lot of fans were pissed that it didn't bother to show what had happened to the twins after they left Acid Tokyo.
Tokyo Revelations and Tsubasa Shunraiki on the other hand are far less frowned upon because the art, pacing and animation are worlds better than the anime. Not to mention that it actually follows the manga up to 90% of the time and the other 10% can be forgiven.
Take the 10% out of the picture. Clamp's Nanase Ohkawa was the headwriter. Heck, one liberty from the third Tokyo Revelations episode actually foreshadowed the manga's climax. Sakura Kinomoto helping this series' Sakura.
Fridge Brilliance: The anime didn't cast Kumai Motoko and Tange Sakura in the lead roles, despite reusing the same voice actors between in-universe counterparts. Fandom was rather annoyed at this at the time. But, as it turns out in the manga, they aren't really Alternate Universe counterparts of the lead couple of Cardcaptor Sakura...
In volume 24 we have a visit to the shop that was illustrated with the same angles and lines as the first chapter of xxxHolic as a big foreshadowing to the revelation that the original Syaoran and Watanuki share the same role.
Foe Yay: Looks like Fuma didn't have enough of this with Kamui in X/1999 and this time he wants a more gentle approach.
Then there is Ashura-o and Yasha-o even if the latter was dead all along.
"Funny Aneurysm" Moment: After you find out what Fai's deal is most of the stuff that happens earlier becomes this.
Early during publication of the series, the editor and readers were concerned about Syaoran getting stronger to smile more often. Then in volume 16, everybody was reminded to Be Careful What You Wish For
Ohkawa commented in the Clamp no Kiseki guides that the first half was carefully written so that the young readers would understand it as she believes her stories tend to be complicated. Come second half...
Growing the Beard: The Acid Tokyo arc is considered the moment the series changed from a light-hearted adventure story to something darker and more dramatic, most tellingly revealing that the Syaoran the group had been traveling with was a clone, having Fai lose one of his eyes and show cracks in Stepford Smiler act, introducing crossover characters from the much angstier X1999 series, and making the role of the Big Bad much more prominent and ominous This was also picked up by watchers of the anime, noting that the OVAs were a different tone altogether, possibly because of CLAMP dropping Bee Train.
Ho Yay: Fai and Kurogane. Especially once the blood drinking starts. Even if they're not a couple, they're contractually Heterosexual Life-Partners at this point.
Chapter 185 takes the innuendo to a new high, with Fai arranging for he and Kurogane to have their own room so he can take off his cloak and...yeah. It's blatant enough that even people who otherwise don't have Shipping Goggles generally agree that there's something going on with them.
They are not the only source of Ho Yay in this series, you know. The scene where Cloney bites Fay's cheek is also loved by fangirls, even the Kurogane x Fay ones.
Moral Event Horizon: If Fei-Wang's curses on the original Sakura and Fai did not make him cross it, then the murder of Xing Huo and the destruction of time space sure can.
Not So Different: Both the original Syaoran and Fei Wang Reed are obsessed with reviving somebody and have committed a sin for this purpose. However, Syaoran's methods to achieve his goals are really harmless in contrast to Fei-Wang's.
Ron the Death Eater: Ashura-Oh often gets this treatment in fanworks, despite the fact that Word of Godand Kurogane who was the one who killed Ashura-Oh both acknowledge that despite his faults, he truly did care for Fay. While he certainly did go off the deep end this seems to have been largely outside of his control.
KuroFaiis a lot more prominent in the series, though. It grows exponentially from chapter to chapter until it is impossible to miss.
Besides, since ever version of a person is the same in every dimension Tomoyo has and will always have a thing for Sakura. Not to mention that Kuro/Fai is basically confirmed to be canon at this point.
Squick: The manga and the OV As have the sound effect of Syaoran eating Fai's eye.
Tear Jerker: Likely many throughout the run of the series but if there's one moment in the anime that would reduce a person to nothing but tears it would be Kurogane's back story. The musicdoesn'thelp. Heck, even Syaoran cried about it.
Fai's backstory, anyone? That was the first time this troper cried in any manga. Besides, people in-universe were repulsed by the barbarity.
The last Ova had one tear jerker moment that will make you cry more if you watch Cardcaptor Sakura: Syaoran accidentally destroying Sakura's soul who fades away before telling him his feeling. Syaoran's despair just solidified the moment.
They Wasted a Perfectly Good Plot: In the first characters' guidebooks the most expected fights were Syaoran vs Fai and Syaoran vs Kurogane Although Clone Syaoran betrays the group he barely confronts them (he just stomps on them) and instead fights his original self. These fights would have been quite entertaining considering the growing relationship the trio had.
What about R!Syaoran dual-wielding the jian and Hien after his clone's destruction? It would have been the Crowning Moment of Awesome.
The Woobie: Every main character at some point gets a Woobie moment, but Fai's backstory takes the cake in Woobie points.
It's also simply heartbreaking to see the situation Sakura goes through, especially if the reader were to have grown up watching Cardcaptor Sakura: She spends half the story disappointed in herself that she's nothing but a Damsel in Distress that burdens Syaoran and the others, sees her love interest critically injure Fai and essentially be replaced with someone who claims to be the real one, and by the time she actually becomes an Action Girl, she's also clearly a veryBroken Bird, not the cheerful and adorable Sakura that readers were most familiar with. And that's not even edging into the Cloning Blues thing...