Have to agree with both of the above on some points. We like the Delmarva route because it is prettier, though somewhat slower. It all depends on what traffic you hit on the other routes - it might be faster. As far as the CBBT, just have some respect for big rigs and other RVs and you will be fine - not much worse than travelling through a construction zone with Jersey barriers. Have fun, enjoy Williamsburg and a +1 for the historic triangle.
Neil, Lin, and our furry companions, Ashby and Cody. 06 National Surf Side.