I have R500s on my old (now unused) winter commuter. They've given me several years of sterling winter, cruddy weather service with no problems. No spokes broken, hub serviced twice, no difficulties there, rims stayed true as a true thing.
Weight for R500s =1884g
Weight for RS10s=1845g
Spoke counts
R500s
20 Fr
24 Rear
RS10s
16 fr
20 rear
If i was concerned with strength i'd go for the R500s simply based on spoke count and my previous experience of them
RS10s may look better, may be just as strong ? I can't comment, never had them.