But how does it compare to OG in terms of longevity? I mean, which can I invest in and use longer before moving to a better weapon? I always thought it was OG, but RA seems pretty sweet.
Laser weapons in general start losing their use after a while, even Righteous Authority. The Overseer's Guardian modified to use .308 rounds can deal a hefty amount of damage and can definitely be reliable for a majority of the game. Even by end game I found myself using it on occasion.
Overseer's Guardian with a .308 receiver is probably my favorite weapon in the game. Compared to Righteous Authority, there's not even much comparison to make in my opinion. Overseer's Guardian totally smokes it. Personally I didn't really find Righteous Authority to be that great of a gun though. The perk that it comes with isn't all that useful to me. Yeah...criticals do double damage. I already have a 6.3x sneak attack bonus and I'm pretty sure my criticals already do double damage.
Overseer's Guardian does more damage for every shot. Not just for criticals.