Thank you all for the advice. There is some truly great insight here. I ended up choosing PTS for a variety of reasons.
Although not the deciding factor, what @sacklunch said below is something that has been rattling around in my mind for the past 18 months. Either way, I really enjoyed visiting both schools and the debt vs. no debt factor kept coming up. I'm leaving a great job with full benefits, vacation, etc. for this. If I can be well prepared for church work, the a PhD program, and graduate with little to no debt, it seems like the way to go.