I have to go with Elissa as she's who I ended up with in the sweepstakes, and Andy seems like potential disaster, so I'll have an eye on him. Usually I only like one or two people from pre-season and wait until I can see them in action to judge the rest
Nick's my pre-game favourite just for the pure potential for lolz. My pre-game faves always end up not being great though (Matt BB12, Adam BB13, Ian BB14...) so I'm hoping he doesn't fall under the same thing. GinaMarie and Judd both seem lolzy and Helen's oddly endearing so they're my ~core four~ if you will.