Lenny,
This is just my opinion. Scott would probably be the favorite, to beat anybody in the world RIGHT NOW, at one pocket, in a long set.
I am trying not to live in the past, but for about ten years of his prime, No one on earth, before or since...could have beat RA even up, when his mixture was right. (which he controlled very well)
I never saw him shoot the wrong shot, and he could run 8 or 10 and out, as easy as Scott does, on a lot tougher equipment. (and also in a lot rougher spots)
I know its hard to look at him now, and see that...but I honestly believe that Efren (in his prime) may not have got there, due to Ronnie's superior moving, not to mention the conversation. Red was never near the "cash getter" that RA was, even though their game was pretty close.
If you tried to pin me down, to the best in their primes..I would say #1 all time--- RA/Worst, a toss up...then Marvin Henderson/Efren tied for #2, Then I would rate Jersey Red, Ed Kelly, and Scott, a close 3rd. (along with maybe AB and several others) Artie apparently played a great game, but he just never left his home court enough for ANYONE to accurately judge his speed. I have been around a little bit, and never saw, or heard of AB, until I joined 1P.org. a few years ago...And I'm not the only one to say that.
Again, this is just based on my experience, and what I've seen. And its JMHO
Cardone or Grady may see it different, and they have seen all those guys in action more than I have. Be interesting to see their take on this subject.
SJD