yeah, even as he's being choked he should be able to get off some aoe attack. overall tony is too powerful imo. if it were a single random encounter i could see vader possibly taking it. the saber could def cut through the armor and kill tony if he weren't aware of its properties, and the force choke could immobilize him long enough for that to happen, but but in general tony is just too versatile for vader. i'd think he'd be able to hack into vader's suit too, and eff him over that way. maybe even in that single random encounter i mentioned.