Such as?
See, my protection from evil spell works against them!
They're very, very few, but they are there. There's a paladin PP power that does more damage against evil things, there's a helmet that can only be used by LG/G characters, and in one of the Scales of War adventuresthere's a vein of elemental power that enhances the attacks of CE creatures and diminishes all others'.
Heh, my DM decided my wizard got the benefit of that last one. I had attempted to channel the energies of the dark gods in a recent ritual, so I guess I can't blame him too much.
Why would a drow NOT have Proteciton From Evil, hm?
Because protection from evil in 3.5 was a [Good] spell and an evil priest is banned from casting it.
Of course, a Lolth Priestess would love to cast protection from evil. But whatcha gonna do. Can't do it if you are evil yourself (even if you think you are not).
lolthe problem is, the old system assumed that the only champions of a faith that could be classed as paladins, were the Goodly Deities... How is that possible? Shouldn't there have been Paladins for the not-so-good deities? (not Anti-Paladins or blackguards, because both of those were twists stating that it used to be a goodly knight, twisted to become vile and all that)
If they were really going for moral absolutist in their methodology, then there would have been some form of this character that was allowed to NOT be LG... Instead, there were no paladins of gods who were merely NG, or LN... Only the highly righteous Gods could have TRUE champions for their cause...
No, the system did not make sense... they had contradictions within almost all parts of the system...

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.