easy choice ...

Commuter 3 would be my choice for the following reasons:

serious pros:
1. integrated fenders (year round)
2. 7-speed internal geared hub in the back (no maintenance year round)
3. rack on the back (to give ladies/beer crates a ride when needed)
4. smaller market; less likely to be stolen
5. this is the bike that any urban commuter (at least in Europe) would choose out of the box from Jamis.

serious cons:
1. not really cheap at 700USD
2. no dynamo hub for built in front/rear lights
3. not made from 4130 steel
4. no chainguard to keep pants free from grease
5. no integrated rear wheel lock welded to the frame

questions:
1. does it have to be Jamis as their commuter selection looks, well, ummmmm, quite limited, so to say?
2. how much do you save, if only like 50USD, you could do much better elsewhere.