The Contemporary has the best arcade.
As DVC members, the only 2 pools you cannot hop are the ones at Animal Kingdom Lodge and Stormalong Bay (SAB) at the Y&BC. If you are renting points you technically cannot pool hop, but your room key will say "member" on it anyway. I have never been asked for my DVC card in addition to my room key when I have pool hopped, even when we were allowed to go to SAB.
Note, even if you are a DVC member, you may not be allowed to pool hop depending on the dates of your stay. Pool hopping is usually suspended for the big holiday times of Easter, 4th of July and Christmas/New Years.