Norwich Hills is another one of the levels we had played during the beta. The ramps up to the second level and the lack of resources in either of the two other city sites gives Norwich a strategic advantage.
Elevation and Terrain
The entire site is situated along the edge of a huge land shelf. There are two natural ramps that run to the top of the shelf, so you won't have to bridge it. The parts that aren't taken up with cliffs are flat, so it's not a bad level when it comes to layout. In fact, this is a great spot to have sewage treatment plants and a slew of refineries and mines.
Water Table
Yes, the southeast corner of the map has lots of deep blue, but I wouldn't use that. The good water is in the north of the map. There is plenty of water here, so you could conceivably pump it out and sell it to the other two sites if they start to run out.
Resources
The big money on this one is going to come from selling resources. In addition to water, you've got four oil fields right at the entrance from the highway in the south, a large sprawling field of metal ore that covers most of the top shelf, and a nice sized coal deposit in the north.
Usable Land
The rail access, which -- because it comes in along the northern border -- is hell and gone away from everything of value. Also, the cliffs do take up a fair amount of space, so this site will never be a megalopolis. But given the amount of resources that are here, you probably shouldn't have been shooting for that anyway.