Something that we can chat about, let's hear everyone's opinion.
It goes like this: You say what's your most favorite boss on the server, then which bosses keep second place (can be multiple), then the ones at third place (also can be multiple) and finally, the ones at last place. You can choose if you want one at fifth place.
I'll give you guys an example. Here it is:

Favorite: MeeM (come on, he's the best one out there.)
Second favorites: Every TF2 Freak boss (Painis, Seeman, Vagineer...)
Third favorites: Community created bosses (Captain Kinky, Cyldier...)
Fourth Favorites: Bosses based on characters that already existed (Darth Vader, Dalek...)
Last Place: Every Japanese boss (Aya, Fujiwara no Mokou...)

Let's hear everyone's opinion

Ghostface > Predator > Cyldier > Wheatley > Everything else.