Re: Bane or the Joker?
Motivation - Joker(would be Bane until Talia made the reveal, because, while I don't view Bane as some 'lapdog', Joker was on his own)
Characterization - Both
Impact - Joker during his time and after; Bane only during his time of reign
Skills/Talents - Has to be Bane because of his training; Joker didn't really have any skills except to **** with your head and magic tricks