<p>"Who is the tougher foe to fight against" & "who would the Avatar fare better against" are not really the same question & your Yakone example shows why.
</p><p>Aang beat Yakone specifically because the Avatar State has the ability to No Sell Bloodbending, it's not so much "winning a fight" as "making a fight impossible." Yakone had no other sources of water, so he was physically incapable of fighting back at that point. No shit Aang beat a defenseless old man.
</p><p>Trying to claim that Korra "doesn't know how to fight properly" is even sillier, because she actually DOES defeat Amon through sheer fighting skill.
</p><p>Also, this doesn't address how the fuck Ozai is stronger than a giant immortal spirit monster who can basically control the sea & shoot death beams, or the Colossus as someone else mentioned.
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