I am a graduate of Memorial High School and strongly believe that it is the best public education in the city, bar none. Lamar, Bellaire, and Stratford would be the only other schools in the actual city of Houston that I would consider as far as public schools go. However, Memorial can be rather snotty as many of the kids live in multi million dollar mansions and they all drive 40k and up foreign cars, but if a great education is what you're looking for then look no further. However, I will warn you that both Valley Oaks and Spring Branch have apartments and lower end housing zoned to them so I would be wary of those schools. Personally, I would move in the Villages south of I-10 to avoid those problems and get zoned to Memorial Middle School.