There are four routings I know of.
World Atlas of Golf - 1w, 2w, 1e, 2e, 5w, 6w, 7w, 10w, 11w, 12w, 17w, 18w, 3w, 4w, 3e, 4e, 17e, 18e
'98 Pres Cup - 3w, 4w, 5w, 6w, 1e, 2e, 3e, 4e, 17e, 18e, 7w, 10w, 11w, 12w, 17w, 18w, 1w, 2w
'11 Pres Cup - 3w, 4w, 5w, 6w, 7w, 10w, 11w, 12w, 17w, 18w, 1e, 2e, 3e, 16e, 17e, 18e, 1w, 2w
'19 Pres Cup - same routing as '11 with #4 East subbed out for #16 East
I'm not sure if any others have been used for competition.... as far as I know the first routing in the World Atlas was the only one used up until the 98 Pres Cup, but I'm not certain about that. Was #16 East ever used previously?
I thought the current routing worked very well from a spectator standpoint, with several greens in close proximity to the house including 16 and 18, but those who have actually played it the course may feel differently. I do think though that #1 West held its own as a penultimate hole in many of the team matches yesterday that I watched.