Citi -
I'm a resident at UPMC. I'm not sure how to answer your question about competitiveness, but we seem to attract very very talented folks (I realize I'm a biased source!). There is a certain bar set for your USMLE scores in order to be offered an interview, but it's not exceptionally high - I've heard some programs have a cutoff score of 235 - I'm sure it's not that high here, however. It's set by the two-digit score, and is typically around 90 - 92 as a cutoff. You will not be forced into research here, but there is a TON of it going on here should you want it - not having a publication is not a deal breaker, but will ALWAYS add to your application.
I asked in another thread, and will as here as well, for others to chime in with their opinions on our program. We CONSTANTLY hear about how the "location" makes it difficult to rank us highly, but I came from NY and am doing quite well here, and could go on and on about the perks. I feel the program is extraordinary, and would love to hear others thoughts on it.
Please do let me know if you have other specific questions!