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 Moment of Awesome: Many during his career, but the most recent would be at the Extreme Rules PPV, where he defeated Alberto Del Rio for the World Heavyweight Championship, which Edge vacated several weeks before due to his retirement. This is Christian's first World title in WWE, and it doubles as a Crowning Moment of Heartwarming with Edge helping him get the win then celebrating with him.
One fan-created WMG theory to why Christian hasn't been given a world title since his return to the WWE is because Christian managed to get cheered over the guy they were grooming to be the next big thing: John Cena.
Getting cheered over Cena is also attributed to why Chris Jericho was turned heel and thrown into Christian's title match with Cena at Vengeance 2005 and Christian never got another shot again. Which in turn is attributed to WWE failing to keep Christian at the negotiating table, leading to him being seen in TNA very shortly after his WWE contract ran out in the first place.
Jericho turning heel was his own idea, per his book.
This trope seems to be biting Christian in the ass on one level when he's a face. Both times he's lost titles have been indirectly attributed to a fan vote putting him into the match where he would lose his title. The first time was the oft-mentioned title reign of two days to Randy Orton when the live audience 'voted' that they wanted to see that match, and the second time was during his latest IC Championship run, where the week before, WWE ran a fan vote as to which champion (between himself, the US Champ Santino Marella, and the Divas' Champion Layla) the fans wanted to see defend their title at RAW 1000. Christian won the poll...and lost his title to The Miz.
Internet Backdraft: When Christian lost the WHC to Randy Orton two days after getting it, the IWC fucking EXPLODED. Even people who like Orton more than Christian are calling bullshit on it, considering it was Christian's first ever title victory.
Memetic Mutation: The reaction of announcer Todd Grisham at Christian's return to WWE in 2009:
Strawman Has a Point: Following his most recent Face-Heel Turn, he's returned somewhat to the tantrum-throwing brat persona of his younger years - although in some cases his rages and rants are pretty much justified. He was right, for instance, in pointing out that, as Chief Operating Officer, Triple H shouldn't let Randy Orton get away with causing so much mayhem, because after all Triple H himself was once on the receiving end of that mayhem when Orton put both Vince and Shane McMahon (Triple H's in-laws) in the hospital and nearly raped Stephanie McMahon (his wife). Ultimately defied, as Triple H simply didn't care about all that anymore.
Never mind the fact that his WHC title run was insultingly short. A feud between Christian and Randy Orton for the title would have actually been pretty cool, especially considering that they're the top 2 guys on Smackdown and, because of the Draft, its Main Event scene hasn't been established yet. But since WWE have made it clear multiple times that they don't see Christian as a Main Event player, it's never gonna happen. However, this ultimately ended up being subverted as they actually went through with Christian vs Orton, where they went to have some of the best matches of 2011. Still, many feel Christian should have been the champ for these instead of Orton.
And of course, prior to Christian making his WWE return, Jeff Hardy was regularly being attacked by a mystery assailant: guess who it was going to be until somebody higher up decided that since it was so "obvious" it shouldn't happen? Although to be fair, the WWE fanbase immediately figured out that it was meant to be Christian behind the attacks. The WWE gave the angle to Matt Hardy instead, so that they could pull a Shocking Swerve on the fans.
TNA might have generated a bit more interest in Slammiversary 2012 had they advertised that Christian, the reigning WWE Intercontinental champion, was going to appear on their pay-per-view. Instead, they chose to announce it on Twitter a few days before.
Vindicated by History: His actions as a heel in 2011 — namely the enmity towards Randy Orton, the questioning of Triple H, and the general complaints against the WWE machine for costing him his dream World Heavyweight Championship run — becomes completely justified in kayfabe by the rise of The Authority in 2013.
The Woobie: "Oh, hi Grandma Edna! Did you see, I—<Deflated> Yeah. He's here."