Hi there!
We too were looking in both areas when moving from Texas (as well as other towns) and I can guarantee you, Natick schools are much better. We almost got a house in Fram because the cost was great and it was a brand new house, but after doing research on the schools, we changed our minds. From what I learned, you "pick" which school your child will attend and all the "well to do" people pick one school (or send them to private school) and the rest are minorities (not that that's a bad thing, diversity is great, but for whatever reason the grades/scoring are very bad). I used www.greatschools.net as a research tool. I found it spot on and is an excellent resource. It gives you a ranking from 1-10 based on scoring/grades and gives detail info on techer ratio, ethnicities, percentage of passing, etc. Not to say Framingham is bad, just, in my opinion, not as good educationally as Natick. Good luck!