Let me start by saying that we love the Poly.
Do you have kids and if so how old. That might make a difference. The Poly is a more kid friendly resort. Now I have to confess, that opinion is based only on visits; we have never stayed there. I think the transporation options are better at the Poly too.
I'd give the GF the edge in the restaurants, but you can always walk over and take advantage of those from the Poly.