Some of these are quite frustrating! Which quests do you hate the most and why?

My least favorite is On the Beating Path (Camp Bald Knoll, LL). Usually I solo my leves and this one just adds a whole buncha annoying on the side. The ravine that the defense takes place in is saturated in aggressive mobs. Takes a minute or two to clear this out, before you can even start defense.

Another would be Necrologos: Thousandfold Agony (Humblehearth, G). I had to do this one on my THM for some guild marks and it was aggravating. First there are 3 spawns for the galagos. Two of which are on the top level of the forest, and the third is about a minute and a half run away back down on the bottom level. Ugh!