GOP:
Bill Frist
Bill Owens
Rudy Guiliani
John McCain
Tommy Franks
Rick Santorum
Mitt Romney
Colin Powell
Frist- He's running. He's a saint, traveling to Africa every year to give free medical care. Southern. But I don't get the vibe.
Owens- Beloved in Colorado, but he has an odd look, and I think he's short. I don't get the vibe.
Rudy G- Hero of 9/11, tough on crime, proven commodity. Liberal on social issues...too liberal? I get the vibe.
John McCain- Wolf in sheeps clothing. people think he's moderate, when hes very conservative. War hero. Western. Definitly get the vibe.
Tommy Franks- The brains behind the stunning success of the Iraq War (the initial part of it). Very well educated, recognized, and well spoken. Comes from Texas. Big time vibe.
Rick Santorum- Social and fiscal conservative from Pennsylvania. Young, and opinionated...maybe too opinionated. May have problems carrying his own state in the general. Don't get the vibe.
Mitt Romney- Massachusetts Republican. Mormon. I don't think the country is ready for a Mormon President. Don't get the vibe.
Colin Powell- The dark horse. Always denies running. Might decide after another 4 years that to fix problems in government he might have to do it himself. Slight vibe.
Prediction: McCain/Giuliani
Dark Horse Prediction: Franks/Santorum
Edit:
I forgot Chuck Hagle, the Senator from Nebraska. He's a moderate conservative, from a midwest state. Tough talker, war hero. No vibe for President, but could easily see him on the bottom end of both a Franks and McCain ticket.