They have different character. We can't not choose which one is better. They both are just different nothing is bad. Mammals have abilities that reptiles don't have, And same thing to the reptiles. There are some abilities that both have. There are no way to combine which is better, Like different people in the world.
My "Argument" is that no animal is better then any other animal therefore mammals are not better then reptiles. Anyone saying yes would be spieciest. That's my entire argument and I don't know what else to put. Any ideas mate? Oh i'm done now.
If you didn't mean it in this way please specify.