Having played each of them only once so will not comment specifically for fear of getting blasted. Design wise similar; TF just takes everything at Shadow to the "next" level. Experience-wise no comparison, but I would choose Primm desert in a bad economy
, Shadow in a good one
.
The lakes has a a turfed-in, resort feel, while the desert course has mostly non-parallel holes with some scrub and less water features, but still quite a bit of turf. Shadow has a lot of turf with holes divided by trees & pine straw, with some elaborate man-made hazards and some memorable risk/reward options. I'm playing there next week
and will post up some photos with descriptions to the best of my abilities.
Someone please clarify the rumor that Primm was built on the CA side due to a standing agreement that TF had with Steve Wynn not to design any other courses in the state of NV, after Shadow was built.
Attached are a couple of photos from the last trip to Shadow, for those interested.