So I haven't made a prediction map yet, but one kind of fun thing to think about is the strong, negative correlation between Romney's 12' vote and Huckabee's 08 vote. It's a great predictor of how Romney will fare in a given county, and would have almost exactly nailed the Florida map. For the statistically inclined, the r^2 is .8
I wrote a blog post on it here, and there's also a map of how that would play out in Michigan.
http://electionate.com/2012/02/19/predictions-revisited-the-ghost-of-huckabee/
Yes, I think the map posted there and below is quite good. Rick may do better in some of those small northern counties outside of Grand Traverse, but in general, it appears that Mitt will carry the Catholic vote by a rather clear margin ironically. If he doesn't, he won't carry the state, and it looks more likely than not that he will at the moment. Mittens should certainly carry Livingston, Inghram, and Wastenaw I would think. However, unlike the map, I would think Mittens should carry Midland, which is relatively upscale, with all those chemical engineers at Dow Chemical.