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.
Crowning Music of Awesome: His theme music, which were basically one celebration of stereotypes after another, were much better than they had any right to be. Except, perhaps, his WWE Originals theme.
Draco in Leather Pants: Following his return to WWE in 2002, Eddie was cheered by fans whether he was a heel or a face. About three years later, he had to virtually murder Rey Mysterio to get fans to boo him.
Ear Worm: The last entrance theme Eddie used before his death, "Gangster Lean".
Ensemble Darkhorse: Eddie in WCW; it wasn't until he went to WWE that he became a true superstar.
It's worth noting that Eddie was the only WCW wrestler that the nWo put over at nWo Souled Out 1997, during their Spotlight-Stealing Squad stage. (The Steiners won their match against The Outsiders, but their Tag Team Championship win was reversed on the next Nitro).
"Funny Aneurysm" Moment: In the Smack Down vs Raw 2006 video game, Eddie was featured in a storyline that ended with The Undertaker buring him alive. The game was released the weekend of his death. If you lived in PAL territories, you got the game & possibly played the storyline prior to before Eddie's death, but the game wasn't released in America until two days after he had died.
During the skits at the 2005 Rumble when Eddie stole Ric's entry number and wallet, Triple H yells at Eddie, "You're a dead man, Guerrero!"
Grew The Beard: Eddie was always a good wrestler and popular with the fans but his second run in WWE after overcoming his drug addictions really stands out as the point where his natural charisma really took off with fans. Getting rid of the mullet probably helped a bit, too.
During Eddie's first match in WCW after getting into a serious car accident, the commentators make almost non-stop remarks about how great he looks and how it doesn't even look like he was in any pain after the accident. It was due to this accident that he started abusing drugs.
The promo for Eddie Guerrero vs JBL at Judgment Day 2004 could count as well. In the promo, Eddie had invited his family into the ring when JBL showed up. JBL took out Eddie with a belt shot then turned towards Eddie's mother, who suffered a heart attack. Knowing what we know now as to how Eddie died (the same way), it makes this promo harder to watch.
No Way Out 2004 had more of the same, with Brock Lesnar screaming at Eddie to just die already.
He's Just Hiding: For a few months after his death, namely during Rey Mysterio's push to the World title at WrestleMania, there was a number of fans that were throwing around the theory that WWE was doing this with Eddie & he would wind up returning to help Rey win the World title, since Eddie's character was a pathological liar.
Misaimed Fandom: After a few weeks of frustration concerning tag partner Tajiri, Eddie Guerrero went berserk when Tajiri touched his low-rider (in reality, Tajiri had been thrown into the car by an opponent) and tossed Tajiri into the windshield. The next SmackDown, Eddie cut a promo saying that he was only going to look after number one, which was supposed to be a heel turn, but the fans had begun to buy into the Lie, Cheat, and Steal face persona cultivated just a few weeks prior with Los Guerreros' feud with Team Angle that the action fit the criteria, and the crowd cheered for Eddie. Suffice to say, Eddie stayed a babyface.