I would check out the Sligo thread from a few weeks ago.
We didn't go to Newport Mills but are happy with Sligo - they have an invitation only humanities program that is solid, and we've been happy with the language program. The theater and band programs are excellent. Math and science are fine but didn't blow me away. We've been happy with the administration overall, the PTSA is very engaged, and they have a good amount of after school clubs, sports, and activities.
Einstein has an amazing theater program and visual arts program, as well as the IB program, tons of AP classes, etc.