Mark,
Pardon my amendment to your post, but Nicklaus, Dye, Jones, Fazio et. al, haven't had their designs compromised over the years by varioius green committees and zealous members due to their relative youth.
Tillinghast, Ross, Travis, McKenzie, Thomas et. al., have had their designs compromised, severly in many cases, hence they are less distinguishable because they can't be found in their unadulterated, pure form.