well i don't think it could harm that much that the paladins got more spells, but 3 level 3 spells are much more valuable to a paladin than they are for a wizard or cleric. simply because it is it is the 2nd highest spells for the paladin but only the 7th highest for wiz.,cler., sorc.... So a third level paladin ring should not give him 3 level 3 spells, maybe just 1 level 3 spell...