Wow! Reading this whole thread is a half marathon in itself. Welcome!
If I was just staying a couple of nights and had a discount, I would go with Poly, hands down. You'll have a blast! We are vacationing for 10 days with the kids, so it's mod all the way for me! POFQ to be specific. I love that resort too, so it's no sacrifice, but someday I'll try Poly! I stayed there once for one night as a kid when my dad worked for disney, but it has been a long time lol!
Cate
I LOVE Poly! When DH and I got married 9 years ago (2nd for both of us) I asked him if he had ever taken his kids to WDW when they were young. He said no so I suggested we go for our honeymoon. We stayed at the Poly and had such a good time that we went back the next two years and stayed there as well. Now we are retirees with less income, but I see the Poly in our future at some point. It's worth it for a special treat!