Well, I think Penny had the chance to be a franchise leve player, but was playing second fiddle, then had it taken away by injuries. Since then, he hasn't been the same player.
By making the comparison to Penny, to me, it seems like you're saying he's done. I don't think so. I think he can be the player he was (outside of that one year I think he overachieved). I just think some people overrated that player.
To me, Hardaway and Hill are an apt comparison. As I said before, I think Vince compares more to sheed, although obviously not in game.