I built a creedmoor to see what it could do and to test the hype. It's not anything special ballistically but I knew that from the start: You're only going to get so much from 40-50 grains of powder. However, it did exactly what it was supposed to. Got more people into a sport which in turn brought more money in and has helped bring an un-quantifiable amount of new products to compete for that extra influx of cash. That benefits everybody.
I see us share similar beliefs on several subjects, Mud, but Badmouthing hornady because every Tom dick and sally has a creedmoor isn't fair. It was well thought out and has done great things for the sport, even if it added a few goobers.
I like to experiment and I know what a 6.5x284 will do. If I had the spare resources I would definitely spend a barrel on a PRC just to know for myself.
Gunwerks was a good proponent of the 6.5x284 and now they're pushing the 6.5 and 300 PRC. However, in a podcast, Aaron Davidson did indicate their testing showed the 6.5x284 still slightly outperformed the 6.5PRC. I own a 6.5x284 and have had it for 5 years. Shoots like a dream out to 1000 yds just fine and my shoulder feels nothing. I think as a reloader go with the 6.5x284. If you don't have the time or desire to reload, go with the 6.5PRC. Either is perfectly fine.