Do you see the same level of creativity as seemed so pervasive in CoH? I'm asking for a friend...
It honestly just depends on personal preference more often than not. What you will think as a hit or miss will be different than what my opinion might be (considering I tend to prefer that "classic" superhero looking costume type). With that said, I've seen what I believe to be some positively interesting costumes: the ones that tend to put more thought into things are RPers, also.
Despite that, I've yet to see a contest where an entire concept is judged on rather than just the costume (surprisingly, even CORP avoided it in their Festival this year). It's something I'd like to try one of these days.