Personally, I though the problem with Superman Returns was that it was one of those "director's passion projects" movies. Bryan Singer is a huge Superman fan and always wanted to do a Superman fan, and what we end up with is two and a half hours of fanboy gushing. We had the same problem with Peter Jackson's King Kong. These are fine examples of why it's a bad ide having a fan calling the shots, eve if said fan is a professional filmmaker.
Although, while Abrams might in principle be the best choice direct Trek, I still don't think he specifically is the right choice, based on my own opinions of him as a filmmaker. And really, starting every interview off with "I'm more a Star Wars fan than a Star Trek" borders on being quite an asshole.