My favourites are string bikinis, in terms of comfort. They just fit my hips / thighs / ass the best - but they're kind of easy to destroy in the heat of the moment. Close second would be booty / boy shorts or tangas (they tie), and third would be a well made thong. (Most of them are just made weird and don't fit me right; I dunno who plus size panties are made for...) My husband likes me in pretty much any panties (haha), though he seems to like the shorts types and tangas the best. It's funny - I don't wear just plain old cotton panties (and I NEVER wear plain briefs of any kind), but I received some as a gift awhile back, and finally wore a pair the other day. Not big ones, just a low rise, high cut brief in bright white cotton. Super comfy, totally unsexy - but apparently, my husband thought it was hot. Go figure. I guess it's the whole innocence factor.