I think sue would win, first off sue is way more sneaky, real tyrannosaurs had feet like elephants (that sounds wrong until i explain) elephant feet have a layer under their bone feet and that both cusions their feet and makes their steps quiet, tyrannosaurs and other large theropods had something similar, also real tyrannosaurs didnt roar and they did make extremely low pitched sounds but still, secondly a real rex has a much more powerful bite, in fallen kingdom rexy bit a carnotaurus in the neck but if you look the carnotaurus doesn't die until rexy puts her full weight on it and thirdly a real rex has better eyesight than a hawk while the ingen rexes can only see movement, there is a problem though, if this was meant to be a story then rexy will definitely win because she basically has plot armour, even if she gets injured the opponent always ends up dying, for example the indominus rex.
Edit: Also the injuries from the indominus and the big one might make her weaker, yes she survived which means she was strong enough to before but if she went through the same thing again she will probably die