I slightly favor St. Dominic's over Astral Weeks, but they're both good albums.
I'll go with 'Jackie Wilson Said' from Van
Side two of Abbey Road (to me it's just one long song)
Art Blakey 'A Night in Tunisia' If that isn't rock n roll, I don't know what is.
Eddie Cochran 'Summertime Blues'
Sir Douglas Quintet 'She's About a Mover'
Well, that's right now. Ask me tomorrow or in 10 minutes and you'll get a different list. Heck, I didn't even get any Stax records on there.
gavo- I tried to get at least two decades in. Some of the early rock is academically interesting, but not something I would characterize as a favorite. Much of the recent music that passes as rock is, well, past me.