The MCO Marriott, which has a resort quality feel, including a very nice pool. It's five minutes from the airport and has a 24/7 shuttle. I've had us stay there several times for free using my Marriot Rewards points.
The pool:
Gift Shop:
Front Desk:
We fly into Orlando late, the shuttle picks us up, we take a swim and then early the next morning we take the shuttle back to MCO and get onto an early Disney Express bus. We're at our
DVC resort by 7, which allows us to "check in" early, telling the CM we don't need our villa right away and are willing to wait for whatever one is opening up that day which meets -- or comes as close as possible to meeting -- our requests. That latter raises the likelihodd of getting a good villa by getting us around all the "room ready" nonsense. We're then off to a park for rope drop, then returning in the afternoon to get into the villa.