Bill:
You are right -- things have evolved.
I would say that Old and Weyhill are in the 6 category -- possibly a 7 if one is somewhat generous.
I see WFW as a 9 -- there are no par-5 of note so that holds back big brother there. The East is a gem
of a layout -- quite different than the West -- more reliant on brain than just overdosing on the brawn side
of things. I would give it a sure 7 -- the greens and surrounding areas are of equal stature to the West,
I'll take a guess and say that you have not seen the Old in the last 5 years, and I know that you have not seen the recently renovated Weyhill course, since it is not yet open (but I have seen all the work and know the property.) I think you need to get out there and I bet you will revise your ratings upward.
The Old Course has an excellent set of greens with great movement and variety. Interesting that you mention the par 5's at WF, because all 3 at SV Old are excellent, especially Hole 6 and my favorite hole on the property, Hole 15, a gorgeous downhill, dogleg left that requires great thought an execution on all three shots to a cool two-tiered green.