1) I dislike the LG alignment restriction, even though it's been around forever. This is one area I see that 4e got right in not restricting it to this. I see the Paladin as a Warrior for his church regardless if it is good or not. Just my opinion and easily modified but why restrict a it to LG when they could have given options based upon the alignment of the deity they fight for? Just my $0.02 and I know it can be house ruled anyhow so nothing big I guess.
May I suggest Green Ronin's "Book of the Righteous" PDF. Using their deities, it creates a Holy Warrior (Paladin for the "pantheon") for every alignment. One of the few, and most useful, supplements that I have purchased. And for the bad guys, the "Unholy Warrior's" handbook