Well, looks-wise...
I often find myself attracted to white, middle-aged men. Sort of embarrassing to admit, I guess. xD
I really love pale features. White skin, white/grey or blonde hair, and pale eyes (like blue or grey). ♥ And I find muscles really icky. I prefer someone with a thin, almost feminine build...
There is just something about seeing a man in a suit. ♥ I'd prefer to see that over some bare-chested, swim suit thing anyway.
Not a must or anything, but I'd prefer that he wouldn't tower over me, as I'm 5'0"...
As for what's inside...
Someone I'm comfortable around, naturally. Someone who can accept my faults and still want to stay with me.
Someone who's a little dominant and confident (I'm more of a follower), but not smothering. And preferably neat, so he can keep me in line...otherwise we'd be in trouble, lol.
Average, or slightly above average intelligence, I guess. I feel really intimidated when I'm around smart people.
And a really big bonus is if he can cook, doesn't like sports, and drinks in moderation...I guess it would be unfair to demand that he doesn't drink at all (and it's not really my place to tell him), but I don't like the habit.
Oh, and he's gotta accept the fact that I like pets. Lots of them! :P