Ok, so the rock would be the first to admit he was never the best 'wrestler,' but he had ring presence coming out of his ass! (in my opinion.)
Before all his neck troubles, and in a few brief outings afterwards, Austin was a really great wrestler, and more than hung with Bret Hart.
Hogan...see Rock
Triple H had a really good run of awesome matches so he had the talent but rarely shows it unless he has the right opponent
Again, Scott Hall was at one time or another a huge prospect, but for whatever 'personal demons' he had, never fulfilled it.
Nash...well Nash is Nash, I'll give you that one.
On top of that I'll add CM Punk, Brock Lesnar, (who was beginning to show signs of awesomeness,) Kurt Angle, Christian Cage, AJ Styles, Samoa Joe, Chris Benoit, Chris Jericho....all wrestlers who I would consider as talented who have recieved major pushes. Regal was pushed huuuuuge...until he got caught by wellness.