Christian - 2005 - Captain Charisma - aka the best thing in wrestling in 2005
Randy Orton - 2004 - Legend Killer rising up the ranks, great IC Title reign
Mark Henry - 2011 - Hall of Pain World Title run
Big Show - 2006 - dominate monster ECW Champion reign
CM Punk - 2012 - WWE Champion for the whole year
Dolph Ziggler - 2012 (so far) - wins MITB, beats Orton clean on PPV, beats Cena in the main event of a PPV.
I liked Edge in 2006, with Lita. I only wish his first reign had been longer though. He won at New Year's Revolution, shocking everyone, bringing ratings up ... then 2-3 weeks later at Royal Rumble he lost clean via submission to Cena. Terrible booking.
But can't fault Edge for that. He made himself a star that year.