At the risk of being excessively general, I will ensure I ask a specific question. Or perhaps it will be more a statement of dilemma.
Fact: Cuben is more puncture resistant than silnylon.
Fact: Silnylon is more abrasion resistant than cuben.
Dilemma: Which makes a better floor fabric in terms of durability?
I am not fused by the difference of slipperiness, and the cost/weight trade-off is essentially negligible. I am saving weight either way and shave more off with the cuben tarp. I take good care of my kit, so any points on ca requirements are also annulled.