My Post column today looks at the emerging one-on-one race between John McCain and Mitt Romney:

BARRING a longshot comeback by Rudy Giuliani in Florida on Jan. 29, GOP voters now face a choice between the guy they’re not sure they like, vs. the guy they’re sure they dislike - that is, a choice between conservative chameleon Mitt Romney and professional maverick John McCain.

There’s already no love lost between Romney and McCain. Their hate for each other is so pure it could wash away sin. But things are only likely to get uglier and more heated from here on in.

[W]hat utterly opposite candidacies the two men represent. The man who will say anything to please, versus the man who says anything he pleases.

It also takes a skeptical look at McCain’s supposed big win in South Carolina.