You have an elite list there, but you can't have a list without the Undertaker. Here's my TOP TEN!
1. Undertaker - (18-0)
2. Ultimate Warrior - No one could hurt this guy.
3. Hulk Hogan
4. Rick Flair
5. Bret Hart
6. Stone Cold Steve Austin
7. H.H.H.
8. Shawn Michaels
9. Macho Man Randy Savage
10. John Cena

Honorable mentions: The Rock but his career was too short. Kerry Von Erich, R.V.D., Tito Santana, Rey Mysterio, Goldberg. A few other guys who could've been great had they wrestled longer Bobby Lashley and Brock Lesnar. But they're fighting elsewhere. Watcha gonna do?