It may have just been pure luck, but we booked AoA for 1 night in a Little Mermaid room.. (We were checking into All Star Movies the following day and had added 1 day to our Disney stay) We got to AoA and they had booked us into a suite. I told the cast member when I was checking in "I didn't pay for a suite", to which she replied "I guess you got a free upgrade..." We were sitting at one of the Waterparks and were talking to a former cast member who said that she used to book the rooms and their screen is like a big game of tetris where they need to fit in all of the multi-night stays into the resort rooms, and 1 night reservations occasionally need to get bumped up to a suite so that they can make the rest of the multi-night stays fit.
... anyhow. To answer your question - the AoA suite was absolutely awesome. We parents had our own room, and each of the kids (aged 12/14) had their own bed.
If it came down to an AoA standard room vs Pop Century, I'd go for Pop! The Pop standard rooms have all been updated to queen size beds. The Little Mermaid rooms in AoA are just doubles... Pop will give you skyliner access with bigger beds than Little Mermaid rooms.
If you book and pay for a suite, there will be 3 sleeping surfaces.
