I'm not too bothered about profiles. I don't really want to know my character's favourite colour or things like that, it seems to irrelevant to me. I think what creates the character and makes them real and gives them personality, is the way in which they respond to what's going on around them.
I throw a bunch of stuff at my character, and he/she gets angry/ sad depending and therefore shows what kind of character he/ she is. As for seeing how the character looks, I like the reader to make up their mind on how the character looks, really. I will mention little things like the build (short/ tall/ skinny) or hair colour, but everything else I leave to the reader.
I know some people benefit from doing these profiles, but I dunno, I just don't.