Are heroic dragons better than legendary?

I'm curious, could you elaborate on why someone might ask if heroic dragons are better than legendary dragons? Is it a matter of power, rarity, or perhaps their role in storytelling? Do heroic dragons embody values like bravery and selflessness that make them more desirable than their legendary counterparts? I'd love to hear your thoughts on the matter and any insights you might have into the differences between these two types of dragons.