I know! Jack, then, for me, Human Doctor, if you can say that for him... because he's a mix of the Doctor and DONNA, whom I LOVE!
Mine list is the same except 4 is craig because i thought he was awesome
I am only about half way through the Second Doctor right now in the classic, but of the companions he has had so far I love Jamie and Victoria (mostly because I think I would act like they do, i.e. nervous yet ready for adventure if needed). I also love Susan probably because she really understands the Doctor in a way that no one else can. I am sure will find new favorites as I go on though.
In the new series I have to say either Donna or Amy because they don't give of the "I need your approval to be complete" vibe and because the smack the doctor around, in a way.