We are in an affluent suburb (we bought the cheapest house in the district

) specifically for these schools, which are supposed to be "the best." I am sort of coming to realize though that they have this attitude of "we are SO great we do not have to bend over backward for bright kids -- they are a dime a dozen around here." IF you are lucky enough they decide your child is worthy of testing you need a 140+ on the WISC-IV, and even then you are pulled out only 45 minutes per day, maybe 3-4 days per week.
On the other hand, we've found a public school on the other side of the state line which is a low-income area (for example, in our district 6% of the kids qualify for free on subsidized lunches, in this district 60% of the kids do). But, it is a small district so it has created a consortium with 3 other small, low-income districts to create a gifted immersion classroom. They go crazy working with these kids, hiring specialists whenever necessary -- teaching calculus if warranted, etc. It is only for PG kids and you need 150+ on the Stanford Binet.
My question is: which is better, assuming you qualify for both.
(And as an aside, would a child score the same on the two tests within a reasonable time frame?)
Thanks!