I say ichigo definitely.

I say Inuyasha because Yoruichi would transform back into her human form and Ichigo would probably stop long enough to tell her to get some clothes on. (and to get a swipe on the cheek.)

I'm typing a story with Ichigo and Inuyasha in it, as well as the Elric brothers and someone else... and Yoruichi actually did transform into her human form to stop a fight between Inuyasha and Ichigo.