Aquaman solos for a few minutes, any longer than that, and his strength goes down, which makes it easier for team 1 to win. Although, I think if he takes Thing down first, his strength will still be high enough to take Cage with no problems.
Nope, not true at all. Aquaman doesn't suffer from the progressive decline that Namor does. He can last 24 hours out of water without any significant losses. The DC team takes this. Hawkman is more than powerful enough to crack a brick like Cage, and Aquaman can at least stalemate Thing long enough for the two of them to put him down.
__________________ "One can do worse than be a swinger of birches..."
-Robert Frost