Tough day. The Gen 3 dragons are iconic, and it's not a coincidence that all of the fully evolved ones that matter got a mega. But Gen 9's fighting roster is packed with amazing Pokemon with great type variety, so it's really really hard to ignore. I voted for Gen 9 Fighting since I feel like it has a strong case for being the objective best gen/type combo, but I wouldn't mind the dragons winning this.
"Foolishness, Dante. Foolishness... Might controls everything. And without strength, you cannot protect anything. Let alone yourself."
- Vergil, DMC3