The Frankie guy is the only one so far in the meathead alliance that has any clue of how to play the game. He's annoying as hell but will actually make some moves I bet that will make the show interesting.
The Devin guy is really stupid, insecure, and paranoid which also makes the show good.
The tall model chick is amazing, huge fan. Hope she stays around a long time.
Agreed that Donnie is a good guy and very likeable.
The main redneck guy from the military seems like he might have a bit of a clue as well but also seems to have an ego that could get him in trouble.
The rest of the cast really hasn't been given too much time or are coming across as pretty lame.