I definitely do. And looking at my character history it's painfully obvious how much I like bright red/orange hair, haha. Part of it is the fact that looking for character art (I avoid face claims of real people for the most part) results in finding beautiful people, since artists typically draw beautiful people, especially in the fantasy genre, which is the majority of what I occupy.

So my characters are usually attractive. I don't think there's anything wrong with it. I don't demand that every person I write with also think my character is attractive. I also tend to beat up my characters pretty badly... so they end up less attractive than they start, heh.