The maps on Duels are too small, too bumpy, and have too many decorative obstacles in the way. I love the maps on badlion, Massive plains of sand and other surfaces, at least 100 blocks across, with no dinosaurs or buildings in the way, and massive glass barriers. No goddamn pools of water or lava in the way either. Even better, skybasing is impossible, seeing as blocks can't be placed above 3 meters. I'm not suggesting that Cubecraft should copy Badlion exactly, but the maps are too decorative, and not optimised for fair pvp.