I applied to UVA, Vanderbilt, and W&M. The latter two were very stingy with AP credit as opposed to UVA - which isn't AMAZING with credit (generally a 4 will get you credit, but some need 5s) but is really good compared to a lot of other places I have looked at. They took all 36 of my AP/dual enrollment credits so that is good!
Harvard is ridiculous with credits - you can graduate a year early if you have a certain number of 5s, otherwise no credit. At least that's what it was last time I checked.