I don't have any first hand knowledge about UCSD but I can tell you my impressions of UVA which might hopefully help you make a decision. By way of background, I completed a 1-month elective at UVA last year.
I was really impressed with the UVA program. The program director, Dr. Atkins, is very friendly, as are the residents. They have lots of big name attendings -Wick, Mills, Patterson, etc. I attended a few conferences while I was there and these were quite good (Mills' weekly conference was especially worthwhile). Also, the facilities at UVA are very good. A couple of downsides (or upsides depending on your perspective) about this program are that it is spread out so you will do a lot of walking. Also, you will definitely work hard when you are on surgicals.
UVA has a number of fellowships, including dermpath, so this should certainly be an important consideration for anyone interested in fellowship training.
One of the biggest selling points about the UVA program for me was the city of Charlottesville which is beautiful and safe. It is a small town, which may not appeal to everybody. However, it would suit someone who likes doing outdoor activities such as hiking.
I enjoyed my month at UVA very much and would definitely recommend the program.