Here's a link to their website, where you can read all twelve contestant bios:
HGTV Design Star : Home & Garden Television
Genevieve, Vern and David are back.
You can also vote for fan favorite, but considering we haven't really "met" any of them yet or seen them in action, it doesn't seem quite far to be picking one over the other just yet.
EDITED TO ADD - I'm not sure how to bump this thread up and out of the basement, so if anyone else can do it, please feel free to put it someplace where it's easier to find.