Just my thoughts, with the tournament green speeds, BPB 15 is more of a birdie hole. Add about 20 yards to your shot (if it's 160 and over), hit full bs, and land it on the front left of the green. More often than not, you'll get a nice (prolonged) roll to something inside 6 ft for birdie, below the hole and to the right. You can even "over-read" the break -putts will actually go past the hole and come back down in for a 3.
My 3 least favorite:
Kia #3 (for the reasons Neil discussed, putts left of the hole are basically a coin flip)
Oakmont #12 (the long par 5 on the back). Hard to even hold the green with a wedge, some putts have more break than it appears.
St. Andrews #2 - the left pin is relatively fair (even though the proper landing area is about 2 yds long from the championship tees), but the back pin is ridiculous. Land a long iron short, and it will careen away off the hill. Too short, and you're looking at double bogey from those mounds. Too long, and you need to chip back downhill.