I only have bantams too. Cochins are my favorite. We also have Rosecombs and Old English Bantams...oh, and my showgirls. The cochins are very tame, easy going, gentle, slow moving, making excellent show birds. The rosecombs and OEB can be a bit flighty if not handled often...and showgirls (well, those were just for fun..for me)...they are a cross between a silkie and turken.
You just can't go wrong with cochins. I had mottles for a while, but the sun makes the white look brassy--which is not good for showing.