I don't follow wrestling that much anymore, but like I am with comic books, I still imbibe if the finer examples of the art form. If anyone here still watches, you might know of a group called The Shield who has a largely silent member known as Dean Ambrose.
Watch this guy. He's the next Jake "The Snake" Roberts. Like with CM Punk, if they give him a mic and let him go, he could redefine the modern wrestling "heel". Here is a sample of one of his finer promos called "I'm just a sick guy" (start at 0:45).
For me, this is up there with the other great promos in wrestling history
Skip to 9:27
Skip to 0:35
And my personal favorites (mainly for humor)
Promo Blooper Mean Gene & David Schults by preachinblues