This always causes people to think and debate! So many ways to define great! I feel priviledged to have seen racing in the 60s with the usual suspects. But, even the supporting cast was high quality. Paddy Driver, Chris Conn, Paul Smart, Alan Barnett, etc etc. But I would plump for Mike and Joey, of course.
One name you cant leave out?
Jim Redman....
With hindsight, I believe he was a better rider than give credit for.
Keep the discussion going!
Mike