which joint?

which one is stronger? I will be using stock shafts. Spicer 760x or, Alloy USA x-joint 5-297x?

Alloy says is is 15% stronger, but the 760 says its 20% stronger than the spicer 297. so is the Alloy 15% stronger than the spicer 297 or 760 making it 35% stronger than the spicer 760???

prices- Alloy $35ish - Spicer $25ish

Alloy USA x-joints are stronger according to Just Differential (naxja vendor)