Bethpage Black's Holes 5, 7, 10, 12, 15, and 16 are all very tough. The only EASY hole on BPB in my opinion is Hole 8, a Par 3.
Kiawah Island only has 1 brutally tough hole: Hole 17. Holes 4, 9, and 10 are also relatively hard too. Fortunately, all the Par 5's at Kiawah are fairly easy and you have good birdie chances.