I finally started wearing my bibs for commuting. I figured if I have to change clothes anyway (which I was having to do), I may as well have the shorts that are padded and most comfortable, even if it's a pretty short ride (6.5 miles). Changing bibs is just as fast as changing street shorts. YMMV.
FWIW, I went with the Falconi bibshorts at the recommendation of some fellow Clydesdales here. Pretty happy with them and didn't drop too much cash.