DTW has a much nicer airport, much nicer crew room, the most variety of destinations on the Saab and a good pace to the operation.

In my opinion, MEM airport is a dump, the crew room is a prime example of dumpiness, the flying is boring with only about 13 cities that you will see all of it two trips, lots of productivity breaks between out and backs and a very SLOW pace.

DTW gets my vote, but some people find there niche in MEM. Obviously if MEM is where you live or is an easier commute, then it might be the best choice.