I haven't watch any review, but looking at the specs these are the points I could make:
Asus tuf:
(+) More battery (90Whrs), Better performance (?)
(-) Worse screen (?), $80 more
Legion:
(+) Better screen (?), $80 less
(-) Less battery (60Whrs), less performance (?)

From experience, the battery on asus tuf is a huge plus for uni, but u need to decide whether it's worth the extra $80 considering the possibly worse screen.

For screen and performance, i think u need to see review and see whether it's a deal breaker or not.

Do you have any other use case than gaming?