All the mobs are pretty much identical now, so I don't hate any of them.

It's not like you need to pay attention to stun/silence their worst moves or anything like that any more. You just watch for the AOE and sidestep.

Used to be that Impish Incantations, for example, could nearly one-shot someone of equal level, so you really had to pay attention for it and save stun/silence for it.

Mobs used to have different behaviours such as running away when you weapon skilled, or following you because they were curious, or entering an 'alert' state without actually aggroing.

Morbols are one of the few distinctive mobs left just because their AOE stacks so many debuffs. They are actually my favourite mobs because of this.