Eric, no one is going to have a 100% success rate with players, but I don't think it's debatable that UConn does a better job developing players on balance than anyone else. Geno had to do just that in order to develop a powerhouse in the first place. It's not often talked about, but Bascom, Lobo, Jen, Kara, and Keesh, all had to reach their potential for 1995 to happen. Extraordinarily, they all did. And you look at what happened afterwards with Shea, Svet (who fought Geno on doing the little stuff- cant imagine how she would have been with other coaches), TASS, D, Tina (another player who really needed serious coaching to reach her potential), Maya, etc. And that's just at the top. Who knows what Kelly, for instance, becomes at another program.
Of course, other schools develop players, and a lot of it is self-motivated. One thing is for sure- EDD would be much better defensively if she played for UConn. And when I watch Maryland, they run a lot of individual offense. That's especially bad for a player like DD, who's likely to end up relying on individual athleticism rather than a team-oriented offense. UConn not only has quality PG play, but an entire offensive system that is designed around getting the best shot possible. No one else does that.
Ultimately, I believe DD will be a great player wherever she goes, but if that ends up being UConn, she has the best chance to be the best player she can possibly be.