What are the various merits of these two spoke choices?

Im thinking over a new wheel set.

For value and weight Im thinking of getting

X317 Rims
DT Hugi 240 Disc hubs
DT Rev or Sapim X-Ray spokes

Merlin (UK) will build these for me (with DT rev spokes) for £282 UK
Total expected weight will be 1521g.

I weigh 12.5 Stone and I'll be riding XC.

Any other feedback would be useful

I think Sapim CX-Rays will be stronger

and more expensive