Boxers since I was in college. Can't wear anything else, too much chafing. I've never ever had a woman make fun of them or comment on them in any negative way (other than the story below). In fact, one of the girls I've dated for years gets me ones with funny patterns on them like dogs, handcuffs, monkeys, fleece ones with snowflakes for winter, and other things, and chicks comment on them in positive ways. Sounds kind of corny but true.
Reminds me of the time about 10 years ago I was arrested for drunk in public and they took me to the station, strip searched me, took my belt and stuff in my pocket, then handed me my clothes back and walked me to my cell clad in only my underwear. I was wearing boxers that had cartoon ducks sporting innertubes, snorkels, fins and other assorted swim gear all over them. So I passed by this group of cops who were on break or something standing around chatting. One of the cops was a woman. She looked at me, whistled and yelled "Nice boxers, what's on 'em?" I said, "Ducks!" and she laughed.
True story.
