J

I agree, handsome Jack is a big reason for bl2s success and why the best part of bl3 was the Casino Heist. That DLC totally set the stage for a clever return of H.J via clones.

But handsome jack was pretty sinister and dangerous. Given his story, his lack of compassion, how he let his need for power corrupt his mind and was willing to sacrifice his daughter to have control over an ancient Weapon, a destroyer of worlds.

He was sinister man. And the fact that he was personable makes it even more sinister.