All of those fights are really hard to call imo, the only guy I'd really favour over Bradley is Brook. Khan could outbox him, but as Algeri showed you don't actually need a punch to play the puncher against Khan these days, and Bradleys tendency to brawl might actually make him more effective there. With Porter you would expect Bradley to be to skilled, but Porter would probably the biggest strongest guy he's every fougt. Thurman has never fought anyone nearly as good and has looked shaky in spots, so that's another pick em.