Agree with JC on Forest Dunes. It is the best Weiskopf by far that I have played and worth a trip.
However, I have been disappointed with his other courses. Double Eagle is solid but not great. It is not top 10 in State of Ohio, let alone top 100 in the US. In Ohio, I think Muirfield Village, Camargo and The Golf Club are clearly the best 3 in the state. After those courses, there is Country Club (PP), Kirtland, Inverness, Scioto, Firestone South, Sand Ridge and Longaberger, which are all in the same category and finish out the top 10.
I find that Weiskopf courses often have gimmicks that sometimes don't work. He seems infatuated with middle fairway bunkers and overrated short par 4s (I love good short par 4s like #14 at Muirfield but his are not enough risk/reward). Also, even at Forest Dunes, I have never been overly impressed with his green complexes.
Even in golf design, I think he trails Jack, not to mention Doak, Coore, Dye, etc..