I had to look twice before I realized this wasn't a TiTS topic... Anyway, I'm hoping for non-themepark <insert noun> worlds. In this way different realms would be like different continents here on earth before easy travel and homogenization occurred. Different realms would house different peoples with different social/cultural norms, mindsets etc that are influenced by the environment they live in. Form follows function.
For example: I know very little about the next realm; the one Cveta hails from, but it sounds like it has lots of separated floating isles. In such a place winged creatures makes sense, cause you aren't gonna jump from chunk to chunk (unless some can). This race may find lightness of weight to be an attractive trait for both genders, since they'd fly better/more gracefully. Probably aren't too many beefcakes in that race. Flight is integral to their lives, so upkeep is equally important. Contrast this with humans, whose lack of upkeep may be unseemly, but it doesn't really detract from daily life. Cveta's race would obviously never have developed wind instruments cause beaks, and so on...
Compare this to a colder environment, where weightier residents get all the respect and love because that weight was originally a necessity for survival- Jabba could be considered hella attractive here. Another realm may have a far higher concentration of magic juice in the atmosphere- how would that influence its residents' lifestyle. Perhaps another realm lacks some common minerals that earth is abundant in. Lack of electricity due to no copper. And so on, and so on.
The possibilities are far more varied this way, and I think it would be vastly more interesting than ice/fire/farm/jungle/dinosaur/spaghetti world.