Mathematically, you not only have a much higher DPS overall but you have a higher chance of dealing a crit and will do more damage with Rate\Crit\Armor than Crit\Rate\Armor.
Assuming full overheal with a support that has gold RoF, Armor\Rate\Crit wins because you have that much more health. Correcting for miss rate is too range dependant, but assuming that you factor in the reticle reduction as "all of those would otherwise miss" then Armor\Rate\Acc wins.
