I personally find attack of the clones to be the weakest of the 6, the dialogue and the romance subplot kill it for me.
I dont mind the droids being in the prequels, C-3po could have been left out, although it makes his "thank the maker" catchphrase a bit more ironic.
well, part 5 up now,
I must say I had more trouble with getting through 'a new hope' than I had thought. a bit heavy on the repeated footage, but the pacing is what really gets me, I gues its modern high speed movies that are to blame, but i'm used too those.