I used to play mostly warriors. But I've been gravitating toward Mages more and more. Mages just seem more interesting, more involving to me now. Playing a fragile-yet-powerful character keeps me on my toes, makes me think.
It's not a fashionable thing to say, but I really like the magic in Skyrim. I'd never been able to play a Mage in an Elder Scrolls game until Skyrim came out. I'd tried Mages in the other games, but I just couldn't stay interested in them for very long. I finally "got" Mages when Skyrim came out.
I liked my Skyrim Mages so much that I'm playing one in Oblivion right now. Skyrim has taught me a new appreciation for Mages in the other games. But I still like Skyrim's magic better.