I have yet to play at any fields around Morgantown WV other than Greene County. That's partly because there are no other fields as close, and also because the service and play at Greene County is above and beyond.
Greene County Paintball is an amazing. This is in part because of the people running the field and their wanting to make your experience the best ever, and the fact that they try to fun a professional field that has something for everyone.
Greene County has 2 speed ball courses, and 2 wooded courses. These are all top notch courses and make for multiple types of games. The people running the field are always trying to make your experience the best it ever has been. They are very accommodating and will work with you on any matter to come up.
If you are looking for a field to play at on a regular basis, or even just the occasional weekend, I can think of no better field that I would rather go to. They always run everything very professionally and make the experience great every time. I highly recommend this field if you attend WVU or live in the surrounding area.