Quote Originally Posted by Xgya View Post
I'll say that Good is a concept that can have gray areas. In fact, Eberron shows it directly as such, by giving examples such as two Paladins being Lawful Good and generally acting as such, yet managing in opposing warfare to Smite Evil EACH OTHER, because they think the other side is definitely Evil.
Eh, no, that's just showing that "Smite Evil" doesn't actually care what alignment the target is, only that the Paladin think the target is Evil.

In true objective morality, if both Paladins behaved as you described, Smite Evil wouldn't work on either of them.