List 'em. I want to know what people hate. May be things that are usually featured in the same stories, or they can be mutually exclusive.
Format does not matter. They can be literature tropes, movie tropes, game tropes, so long as the genre is fantasy. Also, the subjects of dislike do not need to be absolute - I hate many stock fantasy tropes, but not when they are featured in the works where they were originally created - usually LOTR and D&D.
I can think of a few things for starters:
- When everyone in the fantasy world speak the same language without any problems comprehending each other.
- When the map of the world is a shameless ripoff of the real world with the heroes in northwest, dark-skinned sand land barbarians in the south and mindless chaotic evil hordes in the east. Even worse if there is a China/Japan mashup culture further in the east.
- Alternatively, when the map is a clearly defined and symmetrical island-continent with clearly defined borders for different biomes featured there- looking at you TES and Song of Ice and Fire.
- The main setting is straight out of medieval England.
- Stock fantasy racial tropes like graceful elves, underground dwarves and inherently corrupt humans.
- When characters of the setting have names straight out of the real world, especially if they make no sense whatsoever (for example, biblical names).
- Fantasy counterpart cultures. Pseudo-Romans, Pseudo-Japanese, and so on.