Hux is a terrible character imo. He seems to be ineffective at being anything really other than a snarling foolish jerk. I guess we need to be shown that the bad guys are bad guys by having a guy who foams at the mouth but really doesn't do anything other than that. Nazis are bad m'kay. The casting was also really weird because Domnall Gleeson is kind of a gentle looking and sounding guy, and in his Hux getup he looks like he drank a mild Mr. Jekyll drink watered down with a lot of club soda, or was just punched in the balls by someone. I really don't know what they were doing with that character and he seems really unnecessary. He makes Tarkin look like Marcus Aurelius by comparison. He's a complete idiot whom I can't imagine being convincingly scary or sinister to anyone. Add Phasma to this mix and the now defunct Snoke and it's like Luke is fiddling while the galaxy is dominated by these idiots.