Favorite (would be) world conquerors?
For some reason a while ago I decided to rotate pictures of world conquerors as my profile pic on Facebook. I've wandered back and forth from humorous to more serious, but I'm always trying to think of new ones. And so I figured I'd bounce over here to look for ideas. Also I'm trying not to use characters from the same property if possible.
Here's who I've used so far:
Golgoth (Empire)
Kim Jon Il (Team America... hehe)
The Master (Doctor Who)
Chairface Chippendale (the Tick)
Leonardo Leonardo (Clerks the Animated Series)
David Bowie/The Sovereign (Venture Bros)
Dr. Claw (Inspector Gadget)
Dr. Doom (Doom 2099 version)
Vigo (Ghostbusters 2)
Hank Scorpio (the Simpsons)
So gimme some more, guys and gals. 
The Borg Queen from Star Trek: First Contact?
(And now I see a new word to remove from the filter... I'll fix that in a sec.)
Offhand...
Cobra Commander or Serpentor (GI Joe)
Megatron or Galvatron (Transformers)
Skeletor, Hordak or King Hiss (He-Man/She-Ra)
Starro or Ra's Al Ghul (JLA/Batman)
Kang or Michael Korvac (The Avengers)
Frieza (Dragon Ball Z)
Skynet (The Terminator)
The Zerg (Starcraft)
Professor Chaos (South Park)
Ganon (The Legend of Zelda)
Dr. Evil (Austin Powers)
And of course:
:b
Dr Heinz Doofenschmirtz. He says he's only after the Tri State area but that's just a gateway conquer. It will lead to more. Phineas and Ferb
Baron Zemo is my favorite Avengers world beater but Gravitonand Count Nefaria are pretty good too.
Ming the Merciless if you don't care what world we are discussing.
Dr. Doom would be my favorite, but here are some more.
Dr. Wily (Megaman)
M. Bison (Streetfighter)
Sawboss (Jayce and the Wheeled Warriors)
Would Sinistar qualify?