mep319 - If you are not sure which resort to choose, then do what we do - spilt your stay! We did it for the first time in June by splitting the AKL and then BWI. In November we'll be at the Polynesian for 4 nights and then 4 nights at the YC. It's like two separate vacations! When we are at the Polynesian we will only go to the MK and the AK. When we go over to the YC we'll hit EPCOT and MGM. Our kids are 4 & 8.
Is the Polynesian "cheesy"? Well, I'm not sure!

It's tropical in theming, and the closeness of the MK is great. The monorail is a lot of fun, the pool is great for kids, the water parade at night IS cheesy

but it's great to watch the MK fireworks from the beach.
By splitting your stay you get a taste of two VERY different resorts. Our family's favorite park is EPCOT so we love the YC area for it's closeness to that park. We love that area at night and walking or taking the ferry to EPCOT (and MGM) is great.
In my opinion you can't go wrong at either resort, but it's all a matter of personal taste. I never imagined staying at the Contemporary ( I'm the one who thinks THAT place is cheesy

) but DH has ALWAYS wanted to stay there so we'll try it out next April.
Have fun!!!!
Jill