I have had both good experiences with West Seattle (my younger son) and bad experiences with West Seattle (my older son). In the end, you are going to find most of the same kind of kids, teachers and administrators at all of the public schools. It's up to you and your child to make the best of their education.
We looked into sending our younger son to private school and to be quite honest, I wasn't impressed with any of the private schools either. He is doing well as a freshman, mostly A's with a couple B's, taking all honors classes. He has made more friends - some I do not like and some I do. And he has seemingly responsible teachers who have worked with him and supported him.
Our older son was a different story. He hated school, skipped as much as possible and in no way, shape or form tried to get an education no matter what we did or said. This was also acceptable to the school and somehow he managed to just barely graduate.... this was his choice.
Again - at the end of the day - the school can only do so much, it's up to the kids to make the most of it.