As anecdotal evidence in the "do courses tend to evolve for the better or for the worse" debate, David's pictures are really interesting.
My take, just based on these pictures:
18th RSFGC: MUCH rather play the old one
16th RSFGC: I guess I'd take the old one, but it's closer (and hard to tell)
1st Riviera: I'll take the old one by a good bit, but I imagine some will disagree
6th Riviera: It's amazing to me how similar they look, especially since (I think) some things have changed and then changed back (someone who knows better correct me if I'm wrong about that). I guess I'd take the old one.
18th Riviera: I'll take the new one. Again, I imagine others will disagee.
18th Pasatiempo: I'd rank them: 1) old; 2) newest; 3) sort of new
This is a good idea, David