Crowning Moment of Awesome: His Wrestlemania 27 victory against Rey Mysterio, Jr. stands out for two reasons: A. it being one of the few good matches on the card, including doing a fairly impressive delayed vertical Superplex, and B. Cody being the only relatively new guy who came out of 'Mania looking strong.
His Intercontinental Championship victory.
His short but explosive feud with Randy Orton that saw both wrestlers legitimately bloodied at least once each and (apparently) ended with an absolutely brutal street fight that required Orton to pull out all the stops to beat him.
He put in a damn good showing at the 2012 Royal Rumble, where he entered at #4 and lasted until The Big Show eliminated him. Show entered at #30.
Ear Worm: "WOOOOOOOAH-OH! YOU'RE ONLY SMOKE AND MIRRORS!
And his unmasked gimmick is in many ways a tweaked version of Orton's "Legend Killer" gimmick.
Fridge Logic: The commentators and wrestlers made a lot of noise about "Dashing" Cody shaving his legs...but...doesn't every single other male wrestler in WWE have shaved legs?
Ho Yay: As a member of Legacy. One of their Fan Nicknames was "The Ambiguously Gay Trio", due to their constant close contact and inability to ever wear pants.
Older Than You Think: He was giving "Dashing" tips way back in the middle of 2009 on WWE.com during a promotion by WWE partnering with Gillette called "Be a Superstar". Now, of course he wasn't referring to himself as "Dashing" and his tips were more serious and not hammed up like they are now, but it's a subtle early look at his post-Legacy gimmick.
What an Idiot!: Got punched out by Big Show for mouthing off at him over his Wrestlemania victories, or lack thereof, minutes after Big Show had said he would knock his lights out if he opened his mouth again.