Which biome would you chose? I think I‘ll go with mountains. They are basically just huge chunks of rock featuring a little bit of snow and coal. Swamps aren’t that useful either but at least there is a lot of sugarcane and easy slime there so its nice for the early game. Badlands on the other hand are one of the most useful biomes already cause there is so much gold and terracotta there aswell as tons of special mineshafts.