The Jamis looks a bit more relaxed. The distance between the handlebars and the saddle is a bit shorter.
The bike is also just a bit longer. If there are no problems getting a good fit, I'd pick the Jamis if I was limited
to those two.

Neither is designed with commuting in mind. A commuter will take a larger tire, have fittings for racks.
Cyclocross bikes and touring bikes are popular with commuters. The wheels and tires will be more rugged and reliable.
http://www.jamisbikes.com/usa/thebik...rora_spec.html