Trolls don't have to do jokes constantly though so I wouldn't say it is the definition of a troll. However, yeah, all those candidates are more hateable but just because they are doesn't mean Xaldin can't be up there with them lol xP And thinking about it now...Xaldin/Dilan or Xigbar/Braig...IDK which one is more evil Larxene just seems psychotic
Cast and point: Kefka lol xP
I think that can also be quite a fun type of character.
Sadly I don't really know the character, but from what I've seen in Dissidia, he could be quite a fun character.