RUDY GIULIANI tops the choice for Republican nominee in 2008. Condi is second, and McCain a somewhat distant third (and he’s fallen over the past year). Meanwhile, on the Democratic side Hillary is the runaway favorite. Matched against Hillary, Rudy wins by 7. Rudy’s the only candidate that a majority of Americans want to run in 2008. All according to the new WNBC/Marist poll.