I will not comment on whether the builds are good in a normal game, but if you believe you have a better build in 1v1 you can contact the person and challenge him directly
I have seen videos on bilibili before where they try out champions in hyper late game in 1v1 scenarios (any 6 items + pot and any rune, but no summ).
From what I’ve seen, vayne is the most powerful champion in 1v1 under these circumstances.
He has also done a tierlist for ranking the best 1v1 champions in these circumstances, with vayne being clear #1 (only bad matchup is aphelios) and aphelios being #4 (losing matchup into jax, ksante, yi, kayle)
Something about DongNanQing: He pretty much perfectly predicted the semifinals.
Both WBG and T1 are viewed as unfavoured by the vast majority of people, and yet he predicted a 3-1/3-2 for wbg and 3-1/3-0 for t1, with an emphasis on the drafting strength/weakness the 4 teams showed in quarters.
For finals he predicts a 3-1/3-0 victory for t1.
as i’ve said before, if you believe you have a better build you can prove it by being the jax in the next video agaisnt vayne, i look forward to it