Sorry, cant do it in one sentence.
As a "Newbie" I must admit that the older designers employed (in my opinion) a subtler approach which puts me in their camp. For example, Perry Maxwell would build a dogleg right fairway that slopes left, and with the prevailing wind blowing to the left. The hole has no fairway bunkers On the other hand, Mr. Fazio builds high lip fairway bunkers on both sides of the dogleg. They are beautiful but there is nothing subtle, you either seam your tee shot, or chip out of the bunkers. With the Maxwell example, do you hit 3 wood, or maybe a cut, or go for it with a high draw and hope you don’t block it into the trees, or over hook it?
Another example is the bunkering Thomas employed at LA North. Lots of large, deep greenside bunkers that aren't subtle…or are they. Most aren't into the green, but short or the green, and are used to confuse the visual of distance.
Yea I am a Tillinghast fan, and have played some of his courses (Both Winged Foots, Baltimore CC, Bethpage, Quaker Ridge) and will admit that he’s an in your face guy, but overall, the old guys make you think more.
I have played Austin Golf Club many times, and Mr.Crenshaw/Coore are one of the best at making the golfer second guess his club choice because of subtle design techniques, which I think is and “Old School” attribute.