I think the regular bikini kind of panties is by far the best :P. They don't cover too much that it ends up looking slightly casual (as boyshorts do imo) but not too little that there is nothing left to the imagination such as thongs although they probably come second choice :P
I would like a mixture, because seeing my girl in just a thong would become boring, so I would like her to have a collection of everything, because panties can do what thongs can't but thongs can do what g/strings can't and g.strings can do what panties can't etc, so instead of a collection of shoes, I would want her to have a collection of underwear, because most girls have natural talent and look good in it all,x
i like girls in booty shorts the best! but I also love thongs, even panties sometimes (like when I'm laying down adn sehs about to give me head and just has on panties and I can see her butt in the air with that little mountain gap as I like to call it) lol I love all kinds of things on girls...girls rule
anything but regular undies lol I like mostly booty shorts bt I hate it when they roll up when I put my jeans on so I would say g string are the most comfortable . bt I do like boyyshorts when I wear loose pants.