OK.. I gotta say this before we go too much farther with legging/no legging.
Does what equates to basically painted on pants make THAT much difference?
When I see some girl/guy with yoga/spandex pants or some equivalent on.. it's really not a mystery anymore. You might as well be wearing a thong and sometimes it makes it "better" anyway since stretchy stuff lifts and compresses a lot of imperfections.