I have stayed at just about every resort on property and once you stay in the deluxe resorts it's really hard to go back to the moderates.
Not only are they convenient for me, but I like the extra room for my family. I also like the fact that I can get concierge service there so that if it's brutally hot in the parks, I can go back to my room, have a cold drink and a snack from concierge and relax.
I also love the theming especially at WL and AKL. i absolutely love the Christmas decorations at WL.
You do get more in the way of amenities also. Robes in the closet, internet hook up. (Most recently when I stayed at the GF and the Poly)you get a desk that has the plugs built in which I really liked about them. The digital safe is great too. You can easily fit your laptop in there plus any other valuables you want to keep safe. The new room upgrades are really nice.
I know that the Contemp, the Poly and the GF have the flat screen tv's which do free up more space in the room.
Pam