Ginger Baker ripped off, almost note for note, his famed drum solo "Toad" from of Art Blakey to the point where I'm embarrassed for him every time I listen to the song. I know many British artists did this and garnered incredible reputations for biting off blues and jazz riffs, but Baker straight-up stole his most defining recorded musical moment from an artist who did it better than he did.
I don't remember the song, but I remember vividly listening to an obscure jazz program on the radio, and as I was nodding off, I heard a Blakey solo that sounded EXACTLY like "Toad" except it was faster with much more power and precision.
Aside from the couple of years he played with Cream and Blind Faith, his influence in rock is vastly overrated.
Neil Peart-yes, but there would be no Peart without Carl Palmer and Keith Moon.
Bonham I give credit for laying it down HARD-he put the "Led" in Led Zeppelin.
The above-mentioned and Stewart Copeland round out my list.
