I would always book a Pop room over Little Mermaid at AoA. (I LOVE AoA, but the suite rooms, not LM). That said, I will be at AoA in a LM room in 2 weeks. I got a great discount (CM) and there was nothing left at Pop, so LM it is. We stayed at LM once last year as well. i am a DVC member but saving points for a big family trip later.
I am very excited to try the Skyliner, my son is a manual WC, and it looks like I can just push him onto the cablecar, and that will be fantastic. Hope it is running to both parks on opening day.