I love MIchael Bay's commentaries but the ROTF one was definitely my least favorite.
It is not because of what Michael Bay talked about in the commentary. It is because they spliced the Writers commentary into Michael Bay's commentary.
I wish they were 2 separate audio tracks instead.
Because I feel that out of all commentaries I have listened to, Michael Bay is the most entertaining commentator to listen to because he has really amusing and funny stories to tell and he doesn't get too technical. He adds alot of humor to it and tells great stories about what happened on the set.
But then this one seemed like the writers talked even more than Michael Bay.
So that bit really bugged me. Other than that, his commentary (for the parts that he's commentating on) is really good.