Man, I love this debate. There's so many talents who deserve to go in. For me I'll go with these talents:
Randy "Macho Man" Savage
Jake "The Snake" Roberts
Arn Anderson, Tully Blanchard, Barry Windham, JJ Dillon
The Road Warriors
Owen Hart (if his widow would let it happen)
Brian Pillman
"Playboy" Gary Hart
Larry Zybysko
"Ravishing" Rick Rude
I agree with everyone on your list except Pillman. Why? He was a mediocre wrestler at every turn, was in a very good tag team that only lasted 9 months and was only a compelling character for 1 1/2 years of a 10 year career. I understand sympathy for the poor bastard for being the first mainstream wrestling death, but dude's career is so far from Hall of Fame worthy. He did three things memorable in the biz: get powerbombed to near death by Sid, The Hollywood Blondes, and "breaking" kayfabe on Kevin Sullivan. The "Loose Canon" character was ok, but he did little to nothing in the E except get his small run ins with Austin. Things were getting good with the Goldust feud and then he killed himself (yeah I know how he died, but when you OD, you're offing yourself.). It's sad he died, sad that he barely scratched the surface with his character, but at the end of the day, if it wasn't for his death, Pillman was just an average talent.
Other names that should be in:
Bruiser FUCKIN Brody
Stan Hansen
Bruno
Bob Backlund
Jimmy Hart if he's not in already
The Freebirds- why the fuck the second most important Faction of all time isn't in is beyond me.
Kamala - mainly known as a jobber to most fans that are only aware of his early 90's WWE run, few people got as much mileage or exposure out of a carny gimmick the way Kamala did.