Ziggler is going to be a guy one day, no doubt about it in my mind. You hear nothing about the attitude problems that keep guys like John Morrison down. He plays the dick-weed heel so well, and I find myself literally marking out for some of his random Twitter posts. He's great at making guys look good, too, which is always a great asset to have.
I loved the dude when he was on NXT. Probably my favourite Pro there ever, actually. The way he's just get on the live mic and look for whatever reason he could to chew out the babyface rookies. "Did you just drop the American flag?!? Communist!"
I'm not sure how the dude is progressing on the mic, but if he gets to that level where he's a good mic worker, I can't see any reason why you wouldn't want this guy at the top of your card.
Also, I love it that the last two times Ziggler has won a championship, he's shouted out "THIS IS MINE FOREVER!!!!!!"