8/10 for being a pretty solid villain, but for being pretty stupid about the whole "red crystal" thing. He obviously didn't think that one through.
Night Spirits.
9/10 for being such an easy, yet fun boss. Because I didn't want to fight Curly, go through the friggin sandcrocs and then fight a tough-ass boss. And he gets even more points, because I fought him while wearing a puppy hat.
As for the Doctor, he gets 8/10 for being a dumbass in the boss fight but he's a pretty cool villain otherwise.