The problem I could never get past was not that the movies themselves were bad, it was that, at every other turn, they were not internally consistent with the originals.
Example: Obi-wan never remembered R2, Vader didn't remember C3PO, Leia remembering her mother...and on and on.
When discussing reboots and prequels people often say "Why do you care, it doesn't ruin the original for you", but with these, IF you accept them as canon, then it does make the originals less good. Erasing them from my own head canon makes the originals more internally consistent. It also makes the clone wars more interesting.
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Side note, have any of you seen this guys videos? I don't know who he is, but I wish he'd been involved in these movies. I love his take on them:
https://www.youtube.com/watch?v=VgICnbC2-_Y
https://www.youtube.com/watch?v=JAbug3AhYmw
https://www.youtube.com/watch?v=6wKqH6vlGHU