Legend Of Korra. Chief Lin BeiFong Vs Su Jin(WARNING:Big Spoilers)
WARNING: This versus contains spoilers for the new episodes of The Legend Of Korra. If you have not watched them, I'd advise you to leave now. You've been warned. I am in no way responsible for you spoiling this for yourself, again you have been warned.
Again big spoilers if you haven't watched the two new TloK Episodes.
So what would've happened if [SPOILER - highlight to read]: the fight between Lin and Su was never interrupted by Su's daughter? which Beifong would've one that fight?
Yeah. Lin was clearly well below her best and no match for Su the entirety because
1. She was thinking irrationally and wasn't focused.
2. She was physically very ill.
If she was healthy, I think Lin would have won. Older siblings tend to be held with more power except in the case of Zuko/Azula. Also Lin is constantly fighting as police chief, while Su is a free spirit either dancing or helping her family. Sure it involves metal bending, but not to the level Lin practices daily.