If it's McCain, we gain someone who unambiguously supports US victory and our enemy's defeat as a cornerstone of our foreign policy. Sounds like an obvious view, until you check out the DEMs. So just that alone makes a world of difference to me. I want someone who knows which flag to salute and which side of a war he/she is on.
If it's Romney, you get that, and also someone who is a talented executive, who will likely be far more conservative than the DEM party nominee.
McPain is certain Amnesty and certain hegemonic conflict escalation . He is no Conservative .
With Romney, you just simply get screwed. Pathological liar and liberal. Ditto Huckster.
Conservatives have nothing to vote for. Nothing.