I want to cheer this as well. Although, Bronxie, did the little elf pout at you as hard as he's pouting at me for the pantsu comment?
Pantsu are by the way also known as shimapan, those cute little, Japanese anime meme striped girly panties, for those of you who don't know
As for myself personally, I agree with Bronx on the tighty-whitey front. They make me think of my father, and thus, completely kill the mood. Therefore I have most of my current era characters wearing boxers, or boxer briefs.
For my fantasy novel though, most of my humans wear linen small clothes, or just silk lined leather breeches, the fancier ones opting for silk or velvet pants, with no small clothes, all depending on status and finances. The elves tend to forgo the small clothes too, but it does depend on the elven kin.
But my favorites are my clerics, who wear the most irritatingly complex robe, a thick velvet one for winter, and a slightly thinner cotton one for summer, but underneath they must always wear long flowing linen pants, that have a waistband that reaches up to their ribs and is laced around their torso a certain amount of times, much like their much hated robes.
And yes, they all hate my guts for wanting to dress them up like that, but they are oh, so pretty in their linen pants.