My guess would be ...
(R) McCain/ Thompson — or possibly Romney/ Thompson (which is why I think Fred Thompson has declined to endorse);
(D) Clinton/ Edwards;
(I) Nader (don’t know who he’d pick — doubt it’ll be Kucinich, Kook’ll have to focus on his House campaign);
(I) Bloomberg (also don’t know — Paul’s got too much baggage though);
(G) McKinney (who cares)
I think a McCain or Romney ticket with Fred Thompson would be strong competition for Clinton/ Edwards. Neither is perfect doctrinally by any stretch (though Romney would be preferable to McCain) — but the addition of Fred to either ticket may help comfort concerned conservatives.
I don’t see McCain adding Huckabee ... strategically, he’ll need a southern conservative. Ultimately — McKinney, Bloomberg and Nader would all siphon from Clinton (some, but not a ton) ... which is good news for us.
Strategically speaking, in a McCain/Thompson vs. Clinton/Edwards election — I think we’d have a good shot at winning. McCain is likeable, even if not particulary conservative, and popular among the middle. Hillary is not likeable at all. Thompson might help bring conservatives back into the fold, and the Nader/Bloomberg/McKinney trifecta should siphon off a few leftist purists.
Doctrinally speaking, the re-addition of Thompson to either a Romney or McCain ticket is the closest we’re going to get to having a true conservative in the White House.
H
With all due respect to Fred, if he could have done that, he'd still be in the race.
Clinton won’t pick Edwards. And I doubt that Thompson would accept an offer from Romney