Hmmm.....Vader, Bigelow...good picks. I'll also add:
Tajiri: Here's a guy who didn't speak one word of English, yet the son-of-a-bitch was WAY over. Incredible in ring talent, lots of charisma. Never found anything worthwhile for him to do.
Super Crazy: Once again, another world class performer (ring wise). But since he's not 6 foot 3, while abusing steroids, Vince didn't see fit to use him.
Steamboat: wow....talk about a fuck up. One of the best wrestlers of his time, and arguably ever. But I guess since he was a NWA-WCW made "guy", he couldn't possibly move up to World (in WWF) title.
Ultimo Dragon: Jezzus.....re-ocurring theme here....
I cannot tell you how much it bothers me to see someone like Randy Orton, Kevin Nash and the like on TV, main eventing (even holding the top belts), when there are others more deserving who can't sniff top of the card.