I'm enjoying my Khajit sneak. He's my third toon after an Imperial and a Nord which I didn't play for very long. I started him out with the DB right from the start. He's finished with the DB, Thieves Guild, and Winterhold College quest lines so far. Having sneak at 100 is a blast. That and high archery makes for a decent sniping style.
I played Morrowind and Oblivion (also FO3 and FONV) for longer than I'd care to admit. I do miss spell crafting, but so many things have been refined that it's really that much better of a game. I keep thanking my wife for it. She got it for me for my B-day, knowing she wouldn't see me much for the next several months! hehe