I wear the Rapha Pro Team bibs almost exclusively. I can't imagine anything feeling better (I have tried Assos, Craft, Castelli, and Hincape). My buddy wears almost exclusively Assos and swears by them.
I think it comes down to person preference based on your unique build/body geometry. Buy one of each, I very much doubt you will be disappointed with either one!
__________________
Attack in the feeling because it says I'll win absolutely.