#4 Sting debuts in WWE (Survivor Series 2014)
At one point in his career, Sting was WCW's version of Hulk Hogan. He would become an even bigger star in the later 90s, as his battle against the New World Order helped take WCW to heights the wrestling business had never seen before.
But, when WCW went belly up and was purchased by WWF, Sting was one of the few WCW stars who didn't jump ship. In fact, he eventually signed with TNA (now IMPACT Wrestling) and worked for them for years. Eventually, though, The Stinger decided to give Vince McMahon's company a shot. You know, just to see what it was like.
And, like most things Sting did in his career, his debut at Survivor Series was pretty incredible.
The historical significance alone - the last WCW holdout appearing at a major WWE show like Survivor Series would be enough to make this list. But, it was also just so damn cool.