Lawful Good, “Crusader”: A lawful good character acts as a good person is expected or required to act. She combines a commitment to oppose evil with the discipline to fight relentlessly. She tells the truth, keeps her word, helps those in need, and speaks out against injustice. A lawful good character hates to see the guilty go unpunished. Alhandra, a paladin who fights evil without mercy and protects the innocent without hesitation, is lawful good.
Lawful good is the best alignment you can be because it combines honor and compassion.