A friend of mine is thinking of starting up a Mutants & Masterminds 3e game, which I'm excited for because he loves the supers genre and puts a lot of thought and effort into the games he runs (albeit rarely as he doesn't have the time to do it much).
@SJohnRoss Aha, that's good, because I wasn't really a fan of what I saw in GURPS Supers either way back when I was into GURPS. I haven't looked at I.S.T.