I'm a current Penn resident and I love this program. I didn't interview at Pitt, and don't know much about their program, though it certainly is an impressive department in terms of research output. Penn has a ton of well funded research, there is no shortage of research opportunities for residents. I do think that Pitt probably has higher quality inpatient exposure. But we've also got excellent consult and emergency psychiatry. The wonderful outpatient training and supervision is the true strength of our program.
But beyond just the usual checklist of training opportunities, call, research, etc., my favorite parts of our program are my co-residents, the location (Philadelphia is a great, livable city), and the supportiveness of the program. My fellow residents are some of my best friends, I can count on them for anything both personally and professionally. And I could not have gotten through having twins this year without such supportive PDs and faculty. None of my classmates are from Philadelphia, and none went to med school in Philadelphia, yet the majority will be staying here for fellowships or to get jobs after we graduate, even though they'd have lots of opportunities elsewhere.
Feel free to PM me with questions.