As a Canes fan living in DC, I'll comment on Verizon Center and PNC, since I usually get to at least one game a year at both.
Verizon Center's location cannot be beat. Right in the middle of things downtown. Stores, resturants, nightlife, museums, whatever you want to do before and after the game, it's all right there. A short walk to the national mall and literally on top of a metro stop- a hub with three lines, to boot. Somebody early in the thread complained about gentrification- that was pretty much by design. The area was absolutely terrible and incredibly dangerous before the Verizon Center was built- building the arena brought in a ton of business and was one of the biggest catalyzing factors that helped to revive all of DC's core. Yes, people got priced out- because it's no longer a violent slum.
However, the arena itself is lacking- narrow concourses on the upper level make it hard to move around (though that's just a factor of having a constrained size building downtown), and unlike the food around the arena, the food in the arena is utter garbage. The beer selection is poor as well- there are a few craft beers, but if you want something other than a crappy american lager or an IPA it's going to be hard to find. In game experience is the same generic screamy music and jumbotron "make some noise" crap every other arena seems to do these days, which is to say, poor. Views are good, but the cupholders have no bottom, and cannot hold any of the cans of beer sold in the arena.
PNC: In the middle of nowhere, which works for NC, where everyone is driving. Right on the interstate, so it's easier for fans to come from other parts of NC. The concourses are fairly roomy, and there are several legitimately good food options, including some with local color- the pulled pork barbecue has long been a staple, and while it's not gonna win any awards, it's actually pretty dang good. With two sauce options, of course- Eastern and Western. You can still get the generic hotdog and chicken fingers type stuff, but why would you? Oh, and beer selection is probably the best I've ever seen at a pro sports arena, with a pretty good variety of local craft beers spread all around the arena. Game experience has gotten better- it used to be generic scream, but they've started incorporating some more songs with actual melodies and local sound in recent years, including having local artists play during intermission during some games, which l love. The view at PNC has always been great and continues to be so.