I really enjoy that finally you have fixed the luminosty challenged pyrotechnics in the big overhead shot of the duel on the walkway. It's one of those things where I've just wanted to take a giant red marker and paint a circle around it and go "if you have to change the movies around then fix this. This! THIS ONE FIRST!"
But in the same shot I thought Luke's "super bright" saber was great. It will be missed. I think the new style looks too... bloomy if you will. And less like a lens flare.