If you care about electability, you should be supporting Mitt Romney:
http://www.townhall.com/Columnists/Column.aspx?ContentGuid=cb4249a8-b6b8-49b6-8256-fa3cb41e7571
"TO START WITH THE OBVIOUS, MITT ROMNEY IS THE most conservative candidate in the field who has, at present, a chance of winning. "
Giuliani is the only one that beats all the leading Dem candidates and he is also the Republican front runner.
Romney is a distant third and has no chance against any of the Dem candidates.
My mind is open on Romney. As the primaries approach, I'll start paying closer attention. Its too early right now, and my gut is for Rudy because I've known about him and have watched him for 20 years. But I'm open-minded.