It depends if your type is to do with things inside or on the outside.
All Allison's type's were things on the inside, which I think it's ok to go for.
Like Jolene said, attraction is attraction, it just happens. When I was growing up I had god awful taste, or at least everyone else thought I did. I dated some very attractive guys, but wasn't interested in them, some I was, but who I was attracted to was random, not to do with looks and I went with it.
My last boyfriend was not good looking, not in the typical sense, in fact when I first saw him I thought he was the ugliest person I had ever met, but I fell for him, and people hated that I was dating him. People who were his friends tried turning him against me, saying I'd leave him or was using him (for what I'm not sure), people around us would be like "why are you with him?" or "how on earth did he get you?" It really got to him, he never put himself 100% in the relationship because he believed I would leave him. Men he knew would obviously come onto me in front of him, girls though did seem to show more interest in him (girls had never really shown him much interest except friendship before), he eventually cheated on me and I eventually left him (I didn't find out he'd cheated until after we broke up, I'd had a feeling, but it wasn't why I left). In fact every time I go back to my home town it gets brought up on "oh my god, how on earth did that happen? what were you thinking? You have such terrible taste." Maybe, but he made me laugh, we could talk about anything, had so much fun together, plus he knew me better than anyone else ever has, to me that was enough.
Since then I've spent the last 3 and a half years alone, well, not totally alone, I've dated people, but I've had this idea of who I should go out with, who it'd be safe to go out with. Because I felt I couldn't go through all that again. I couldn't date someone who never really believes I'm real, and I couldn't date anyone where there's a risk that other people are going to constantly tell him he doesn't deserve me.
I've actually started dating someone recently, it's the same kind of story, he likes me, but is also determined that I'm mad for liking him, and will probably get bored and find someone else. I mean I wouldn't mind him getting some better clothes, but I think he's gorgeous and am really attracted to him as a person. I'm just hoping it's not going to be the same. I don't really care about looks much, my whole family are beautiful, in that typical way, so are almost all the people I grew up with. It holds no real value to me, it's nice to look at, but it doesn't make anyone special, it doesn't even make sex better. Looks are important, it's just, you can find beauty in some of the strangest places.
Interesting thing with types, when I dyed my hair dark from blonde, there were a bunch of guys I had been around before who hadn't been very interested who suddenly chased me. A friend even said to me "you're a lot less hyper as a brunette" No.... I'm exactly the same.... it's just you making assumptions before on looks.
When I was 15 I dyed my hair dark a few days before going to this guy's house party, it was clear we'd liked eachother and he'd invited me and said I could bring a friend, turns out he was obsessed with blondes. Different colour hair= I'll go sleep with your friend instead, she's blonde. He even told me a few months later he really regretted it and he'd really liked me before. We were young, but that is how important something as simple as hair colour is to some people.