After doing some research, Duncan Hunter would be my first choice at this stage of the game, but I don't think he has enough name recognition to get anywhere. So far Giuliani is polling well but I'm hoping that as the race progresses his true liberal RINO colors will come out, and hopefully there are enough social conservative Republicans to take him out before the primary season is over.
I'd pick the seasick crocodile.
There are 3 words which best describe John McCain: "Stink, stank, stunk!"