I recently came across this meta on tumblr about Blaine's clothes which I found interesting. I'd always liked Blaine's clothes and thought they suited him well, but I never noticed how overtly masculine they were -- and how the strong shoulders/arm look is emphasised by the wardrobe choices.

Rachel and Quinn both seem to always be in skirts and dresses, always be obviously and identifiably feminine. Discounting the Cheerios, do the other characters dress to emphasise gender?