I enjoyed Great American Ballpark, but I don't know if it's way better than RC. The food options and area behind the park where they have little diamonds set up and all the food concessions is pretty cool though. I really enjoyed Progressive Field last year. We stood in the right field corner (in the standing room area) and the atmosphere was great.
PNC is a gem though. Best park I've ever been too. We'll see if Camden can match it this year!