Shelton: He's young enough to be in it for the long term, can seriously light it up, and would be spectacular to build feuds around. Give him some more mic work, and you've got yourself an all-rounder for a new generation.
I'd choose other people (Kurt, Eddie, etc) but for their age, and the fact that they're established. What we'd need is relatively new blood, not guys who have done WCW/ECW, been around for years, and might be on their decline any day now. No offense to Eddie, or Kurt. Kurt does marvelous for a guy with so many neck probs.