Well, sort of related - when I've had elves appear in one of my stories, the male elves were compared unfavorably in physical terms to the female human MC. Not sure how much that counts considering how sturdy my female MCs (including that one in particular) tend to be though. She's a boogeywoman who can outfight male boxing, kickboxing and MMA champions for fun, beat up and toss around a 400 lb lizard-ape creature, tank multiple assault rifle bullets, undent her car hood by punching it, etc.
Not sure if that counts.
I was thinking about this thread yesterday and I remembered the Warcraft movie and how ridiculous the sight of humans going mano a mano with those orcs. The Warcraft orcs are basically what might be created if Tolkien's orcs mated with the Incredible Hulk, heh.
So I started wondering how to equalize things. Maybe not with those particular orcs, but a different race of orcs. I thought that maybe giving them great burst energy but poor endurance/stamina might work. I thought about making elves agile but physically somewhat weak, perhaps with less dense/strong bone structure. And so forth. It was an idle brainstorming; I don't plan on doing something like this, at least not for the foreseeable future.