#3 Kenny Omega

Kenny Omega's situation is different in the sense that he was very raw (no pun intended) and very new to wrestling when WWE had offered him a one year contract at one of its developmental grounds, Deep South Wrestling.
Kenny was still pretty fresh when he left and he has slowly and steadily made his name first on the independent circuit and then later in NJPW. He's done it so well that currently he's the hottest wrestler in the world and every promotion wants him.
Despite him not having stepped a foot inside a WWE ring ever, it's been his amazing in-ring work and out of it on the mic charisma that has won him fans all over the world.
If you talk about the most complete package in wrestling right now it's hard to look beyond Kenny Omega (pretty much why WWE offered him a handsome contract as his stint in NJPW ends).