To the question of which course sports more severe greens, Pebble or Cypress, it would be a close call. I would think that CP has some additonal interior contour, whereas most of the PB greens cant in one direction, but a green-by-green study proves otherwise. For this discussion, I would define a "severe contoured green" as one with multiple tiers, heavy slopes, fall-offs on the edges, a tough place to have a downhill/sidehill putt...etc...
The rundown:
More subtle:
CP: 1, 2, 6, 11, 12, 16 (as subtle a green that hole can have), 17
PB: 2, 4, 6, 7, 9?, 13, 15, 18
More severe/fun!?:
CP: 3, 4, 5, 7, 8, 9, 10?, 13!, 14, 15, 18
PB: 1, 3, 5, 8, 10, 11, 12, 14!, 16, 17?
There are a few I don't remember in close detail...