On one hand, you won't have to worry about wedgies, cameltoe, or visible panty lines. On the other, we can't imagine they'd be flattering on any body type.
Editorial note: Whoa! You've found a super-old post here on BuzzFeed, from an earlier era of the site. It doesn't really represent where we are anymore, and may in fact be totally broken, but we're leaving it up as a part of our early history.