I AGREE 100% with Final Appeal. GET RID OF RANK BEING PART OF THE FORMULA FOR JUST EVERYTHING.
I know that the solution they chose by making rank a strong factor in just any formula is one way to make sure "soloing" works, but PLEASE PLEASE either get rid of it completely, or tweak it in a way where Rank isn't the only damn thing really affecting anything in the game.
Just as an example. A Gladiator R48 in Full Plate Gear will get a shitton more damage when getting hit by NMs(Buffalo etc.) then a GLA50 with Leather Gear(more then 100def less) just because and only because he is 2 Ranks higher. This is not working and this will make gear whatsoever completely useless as long as Rank is the only factor that really does anything in the game right now.