Yeah, I'm double posting, but it's been five days so whatever.
I was wondering – of all the characters we've seen across both series, who is the best at firebending? I mean, obviously it would be a tossup between Ozai, Iroh, and Azula while Sozin's Comet was up, at least in terms of raw power (I'm guessing that Zuko was the least skilled in the family), but outside of that I think Roku would be a strong contender. And then there's Aang and Korra, who probably wouldn't be able to beat Roku in a fire-only match since that was his native element, but if they only used firebending while in the Avatar state (though that begs the question as to whether we should even count the Avatar state) they could probably beat most others. And that doesn't even bring up the question of how good Wan was. Mako, meanwhile, is also obviously quite skilled, since he can shoot lightning, but I've never seen him use blue fire, so I imagine that he would lose to Azula. I would probably place him just above Original Series Zuko.
And then P'li and Combustion Man are the wild cards – I honestly have no idea how to factor in that skill, since unlike electricity and blue fire it doesn't seem to scale with raw ability (that is, you don't get that skill just by being better at firebending, or by getting a special lesson) but rather might be an in-born trait which may or may not require some special ritual to give your the eye tattoos. I mean, we never actually saw these two do any particularly spectacular moves aside from combustion bend, so aside from that one trick they might not be very good benders at all.
And it's strange that this is really the only bending form where "best" is even in question. I mean, in earthbending Toph is obviously the best, with Bumi and Kyoshi right behind her, and Aang likely has top marks in airbending. Perhaps waterbending could amount to a match between Aang, Korra, and Katara, but then we also have a question with Yakone and his kids similar to what comes up with the combustion benders.
So yeah, it's a bit tricky. Which is why I figured I should mention it here.