Well, I've always had an obsession with the destroyer. It's really fun to fight against it, and worth it if you are doing a ranger playthrough.
Also, in spite of all the hate that people have towards it, I love -the infamous- Crawltipedes. Mainly because of two things:
1 - It has an unique gimmick of having to attack his last segment in order to kill it.
2 - It has an unique function in his pillar, that is, to keep the player from getting airborne.
And, finally, 3 - It's absurdly fun to see how players who have never beaten that pillar are torn to shreds by a raging Crawltipede. And it's even funnier to see that happen multiple times while they rage in the chat, complaining about how OP it is.
Meanwhile, I just laugh from the ground
