1. Mick Foley -- primarily as cactus jack, when he first reverted to regular mick foley, and mankind; dude love was just a weird character that didn't really make sense unless you look at it as Foley's character suffering from some crippling personality disorder, which, to be honest, is quite fitting.
2. The Macho Man Randy Savage -- Savage seemed to feel real emotions, at a time when wrestling was very cartoonish, and, in a sense, lame. As a the heel champion, Macho could be placed in any era and he'd hold up as the top heel; over the Rock, over HHH, over Hogan, over Austin, and even over Flair.
3. HHH -- I don't care what everyone else says, HHH from 1999 onward to 2005 was the best heel post-golden era. I prefer the intensity of the game over even the eccentric flair of Ric flair.
4. Ric Flair -- You all know why.
5. Phil Hickerson -- Why does nobody talk about this guy? He could brawl and he could talk back in an era where that was what mattered and he was one of the best to do it.
Honorable mentions (in no real order, aside from the first): Goldust/ Dustin Rhodes, Scott Steiner, Sgt. Slaughter, Arn Anderson, Hulk Hogan, Ahmed Johnson, Terry Funk, and Harley Race.