I agree with Rebecca, there are some great options for schools in Pleasanton. Schools are one of the biggest reasons, according to many of my clients, that they chose to move to Pleasanton. My kids have gone through Walnut Grove, Harvest Park, and Amador High and they are wonderful schools. However I can't say anything negative about any of the schools here. They are all very good.
Here is a link to the Pleasanton Unified School District and their current mapping of which neighborhoods
track to which schools.