#4 CM Punk
During his illustrious WWE career, some of CM Punk's finest moments of dominance have come in the Royal Rumble Match. After successful stints in 2007 and 2008, the Straight Edge Superstar broke out with his performance at the 2010 Rumble.
Entering at number 3, Punk eliminated Superstars left and right while delivering a sermon about being straight edge in the ring between entrants. His showing the following year was also pretty memorable, entering first in the 40-man Royal Rumble match.
Punk dominated the first half of that match as the leader of the New Nexus and while both, this and his 2010 stints ended up being shorter than hoped, the Second City Saint certainly stole the show on both occassions.
His performances warrant a Royal Rumble victory for sure. Along with not main-eventing WrestleMania, him not winning a Royal Rumble leaves his story to seem incomplete. Who knows, maybe he might show up and win this year? After all, it was after this very match when he decided to quit WWE.