Finishes wear, so not a big deal. That is what GunKote, Duracoat and Aluma Hyde 2 are for.
But if each pistol fits your hand well my personal choice would be the FNP.
However, I freely admit to having a bias against Sig P series pistols, based on several P226s that I saw self destruct in the late 80s.
"Obama has ordered the launching of more Tomahawk cruise missiles than All the other Nobel Peace Prize winners combined."