Can't really contribute much about economics PhD in particular.
Went to Cornell for undergrad - why I didn't apply there for grad school. I loved it because I had really good friends and fun extracurricular activities. All of my grad student friends were miserable though (across all schools) and spent whatever time they weren't working drinking themselves into oblivion. I majored in multipe subjects including economics so I got to meet many of the professors. The economics professors are stellar - my favorite class was Game Theory...the professor is now the Ben Bernanke of India.
Interviewed and ended up withdrawing from UCSD - the campus itself is beautiful and they actually have a surprisingly academically motivated campus for a California school (not to be offensive, it's just a different mentality from the Northeast). It's not the cutthroat atmosphere of some of the Eastern schools (which is good and bad) and I don't know about the economic professors, but wow it was beautiful! Everybody there seems genuinely happy. I only picked a different school because they had stronger PI's in my particular field of interest. UCSD is in La Jolla, which is on the beach. Downtown is like a 20 minute drive away and there is a lot of good food and things to do. LA is 2 hours away, Vegas 4. But I don't know if that really matters to you. Coming from Cornell, where the most exciting thing was Dinosaur BBQ/Syracuse mall an hour + away, this was something important to me.