Y’know, almost all the outtakes I’ve seen (and also the screen tests) have featured dialogue that was not only slightly worse, but actually much worse than what ended up in the final cut.
Even the added scene between Biggs, Luke, and Red Leader in the hangar from the Special Edition should have stayed on the cutting room floor. It’s genuinely weird how every bit of performance on either side of that little scene is so much better by comparison.