There are 13 flights between DTW and PHL each day, but DL and AA depart within an hour of each other, so realistically there are 7 possible options each day.
7 a.m., 10 a.m., noon, 2 p.m., 4 p.m., 6 p.m., and 8 p.m. DTW-PHL
Last flights out of PHL to DTW are 2 6 PM departures and a single 9 PM departure.
I'm a single young guy as well.
Ultimately though, I don't want to spend half my time commuting and end up hating what I do. I just don't know how big of a deal it really is since I have never done it before.
The upgrade at Piedmont is less than 2 years, and everything I read says to get the PIC time as quickly as possible, regardless of the flow. This of course comes at the price of commuting.
Thanks for all the input so far everyone. It is a difficult decision to make without having any experience in the 121 world.