The Washington Post's Chris Cillizza looks at the "hearts vs. heads" debate as a question of electablity, taking a slighty different stance that our own:

What is really at issue here is whether Republican primary and caucus voters will vote with their heart or their head early next year.

What is really at issue here is whether Republican primary and caucus voters will vote with their heart or their head early next year.

Giuliani is clearly the head choice; his moderate stances on social issues make him palatable to independent and moderate voters and he remains inextricably linked (in a positive way) to the terrorist attacks of Sept. 11, 2001.

Much of Giuliani's rise and continued success is tied into the fact that there is no obvious heart candidate in the field. Romney is doing his damndest to be just that -- espousing conservative positions on nearly every hot button issue -- but his past statements on things like abortion and gay rights make it a tough sell. Thompson was thought to be the heart candidate for the conservative base of the party but his campaign has sputtered since the beginning and voters may well be losing faith.