Hi. My son is 14, too. We're in a different part of the country, but have the same issue. We've been to lots of camps in Georgia and Florida over the years, but now that he is about to enter HS, I guess it's time to get serious. I don't know if this is the right thing to do, but our plan is to let him do a little research, decide which colleges he might be interested in, and go to as many of those summer or holiday camps as we can afford. For starters, I went to ncaa.org and found the top 25 Division I programs and the top regional D II and D III programs, and he'll start researching those for academic programs that he might be interested in. The important thing to us is that he make contact with the coaches at the programs that might be the best fit for him.
From our experience up until now, the camps are all pretty much the same - his experiences have all been good. The camps all have had a very wide diversity in skill level, but all the boys seem to have fun and learn something. My son has always gotten personalized attention, no matter the size of the camp. The most recent one he went to, a Nike camp at Emory University in Atlanta (an outstanding D III program), was very good - but most of that was due to the excellent coaching staff at Emory. Nike camps are held all over the country, and my guess is that they make sure it's a quality program before they put the Nike name on it.
I know this doesn't directly answer your question, but I hope it helps!