User blog comment:AtheistUntoDeath/Which of these Champions would win? Part 5/@comment-24036535-20140530014154/@comment-7707975-20140603130551

Maybe I can help you.

Yasuo's sword being longer also means being heavier, and this would probably put him in a disavantage against Yi (but maybe not against other opponents). Yi is faster than Yasuo and he has that goggle thingy that could help him avoid any strike from Yasuo.

Let's look at morale: Yi is more centered and wise. He is also emotionless when engaging an opponent. He will stay calm throughout the whole battle, minimizing his chances of making any mistakes.

Yasuo is not as wise and centered as Yi, and he is definitely angry (maybe even depressed) with whoever killed his sensei. He is also a drunk. If Yi finds him while he is "partying", then it's gg.

Even if Yasuo is sober at the moment, he has let the alcohol diminish his health over the years, and he may not be at 100% physical capacities (maybe a 97%, who knows). Yi loves salads and avoids burgers and beer, so he is at his full potential.

I'm going with Yi.