I stayed at POR last summer. Wanted the mansions, got the AB section. Initially (at the signing-in desk), I was disappointed. Once we got to the rooms, it all melted. Might try for the Mansions next time, but whatever you get - you'll be happy. You can always walk over to the Mansions (they are beautiful) to use one of the pools or just stroll around, but seriously, you're at WDW, don't stress too much over the resort. Whatever, wherever you choose, will be the perfect place for you.
Have a fantastic time!!