Last year, the people who chose WDW got to choose from the deluxe hotels, but there was no guarantee that they would get the hotel they wanted (although most did). For those of us who chose DL we didn't complete a questionnaire like the WDW people did. They allowed us to request a hotel and some of us got our first choice and some of us didn't. Still, it was free so I was glad to sleep anywhere Disney wanted to put me.
Part of our prize package was to choose a package (DTD shopping spree, tours, spa package, etc.) but really they just gave us a $500 Disney gift card which is good everywhere so that was even more awesome!
And last year the phone calls were from area code 212, but that doesn't necessarily mean it will be the same this year, even though it is Ventura Associates administering the prizes again. I'm quite sure they left messages for those people who didn't answer.