This is a good topic. The question of resistance to scoring is interesting. I have a great example for GCA. Recently after the Senior PGA at Firestone South, one of Fazios most senior designers was saying that if the Senior Pros thought this course was hard, and I think only Fuzzy broke par, wait till they get to Caves Valley. " It is the most difficult course we have designed". Well I think Watson and Pooley tied at 7 under, and there were 64's and 65's etc... The point is even some of the most senior designers don't have a clue about the pro game.
How does this relate to resitance to scoring. Well first you have to decide what type of player you are talking about. And then can a 20 handicap effectively know what would make a course difficult for the expert player, and vice versa. I don't know?
Jones Senior probably built some of the best tests of golf with his hard par easy bogey philosophy. Firestone South and North are great exampes. Greenlefe West, Presidents club etc..etc.. Are any of them really great golf courses. Not in my oppinion, but they are all superb tests of golf for the expert player, and are very playable for the high handicapper.
I don't think it is resistance to scoring that makes or breaks a course, but the quality of the shots that are at hand. Great shots like going for the green in two on 13 at Augusta. 16 at Cypress, 15 at Cypress, 5 at Pine Valley, or the 2nd at 13. The 2nd on the 13th a Pacific Dunes. The anticipation of these wonderful shots seperate these courses from the others. The tee shot on the 18th at Firestone is alot of fun, but it is not great. Dan