I'm sick of the open world game design that Ubisoft invented. All side quests are fetch quests. Like in Arkham Knight: Destroy 50 defense towers, find 5 murder victims, chase this guy 5 times, complete this mini game 10 times in slightly varied ways, I'm sick of side quests just being to do lists.
The only open world game design I like is Bethesda games. Just wander around and discover stuff just through exploration, you don't even need to look at your quest list or the map if you just want to spend the day exploring.