The later versions at least removed Luke's scream when he intentionally falls into the airshaft on Bespin instead of joining Vader. That was worse than Han shooting first, or any other change Lucas made, IMO, because it makes us think Luke accidentally fell instead of deciding to submit to the dark side's will. And I also think it's essential to use the new footage of Ian McDiarmid as The Emperor instead of that monkey thing that was still seen in the Special Edition.
And I'm assuming you hate that Hayden Christiansen replaced Sebastian Shaw as Anakin's Force Ghost at the ending of Return of the Jedi. But here's a question for you: Considering Anakin suffered severe facial burns when he was younger, you realize that he NEVER looked like Sebastian Shaw as you saw him in all pre-Blu-ray versions, right? At least he actually looked like Hayden Christiansen at some point. The only "right" image would have been to use the burn-scarred Shaw we saw then Luke took Vader's mask off, but of course no one would want to see that because it's gross. I think Lucas made the right decision for the Blu-ray, because the argument that Anakin's redeemption returns him to a purer state makes more sense than the Force imagining what his face would look like had he never been burned. As for Luke not recognizing the young Anakin, consider that Luke sees his father's face for the first time as this:
and then sees his Force Ghost like this:
I don't think Luke would "recognize" him any more than he would the young Anakin. Which is irrelevant anyway, because through the Force, Luke would know who he was looking at.
It's simply not as cut-and-dried as prequel haters would like to believe.
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