I know no one seems to like him, but I'd date Keitaro from Love Hina. He's just so sweet!! Think about it, he's smart(sort of), cute, and lovably clumsy! I just want to snuggle him!!(mind out of the gutter folks, I mean a hug).
Other than that. . . uhhhh. . .Maybe Daisuke from DNAngel. Sure he's your classic confused, angsty teen, but I luv his personality! One problem; he's younger than me and I don't like younger men. :o *sigh* oh well . . . he's still cute!^_^
Nozomu or Mitsuru from Crescent Moon would work too. I know, polar opposites, but they both have good personalities(okay, so Mitsuru is a little grumpy). Nozomu I like because he's so bright and bubbly!(Also, he's a vampire and LOVE vampires). Mitsuru is just so. . .I don't know! I just like him! ^_^
Tidus from FF-X. Not an anime, but it's sort of like one with all the story. He's sweet, devoted, and determined! Not to mention very cute! ^_^
Okay, on to guys I would NEVER date.
First off, and people will bug me about this, but Yugioh. ICK!!*shudders* He's just weird! I mean, short, little kid-ish, and has a really deep voice. That anime just hits my ick button. Also, I don't understand why ppl insist on always drawing him half-naked. EWWWWW!!
Got that out of my system! Whew! Anywayz, moving on, Inuyasha. He's cute and has his moments, but he's just WAY too confrontational.
Tatewaki Kuno from Ranma 1/2. This one is almost self explanatory. Two-timing, fighting, and completely STUPID!!! Ugh, I can't stand stupid people.
Tenchi from Tenchi Muyo!. Again, not much wrong with the personality, but he is just too oblivious. How many girls like him again? six? Yeah, just pick one.