I'm going to assume you can't vote a role you played or a role you created for Best Role. For example, I can't vote for Gandalf, Naraku, Paul McCartney, any character in A New Hope, and some others I can't remember right now.
Best Role:
1. The Spy, Those Darn States. In addition to being completely hilarious, it was also a very cool role. He could turn invisible, steal other people's appearances, and kill people. He never really was on your side, but he still got a doctor to protect him for the entire game and got someone with an anti-lynch ability to prevent his lynch. Those weren't inherent features of the role, and more of Love playing it well, but still, it was a nice role.
2. Professor Moriarty, Those Darn States. Mafia with Cover Roles are annoying. Serial Killers with Cover Roles are interesting. Serial Killers with 2 seperate Cover Roles and a Magic Cube makes one of the greatest roles ever.
Best Host:
1. Zack. Having worked with him to design a game and host it, and played several others that he hosted, I'd have to say that he's really, really good at it.
2. Earthling. The Role PM's and Write-ups of TDS may have been a bit short, but they were still good, and it was one of the best-designed games I played on CFC this year. Ngoogol's also looking pretty good, although that's probably for next year's awards, and I don't really know enough about the game yet to really tell how awesome it is.