
Hokage Kakashi might beat hashirama no joke...
In Narutos Novel revolving Naruto dying from chakra illnes. kakashi and yamato makes a mud wall that is 200km!! 200km, that reaches into the thermosphere.
Kakashi needed yamato to help him increase his output to double. Meaning, kakashi by himself using all of his chakra can make a mud wall reaching 100km! Up. Hashiramas Buddha according to Google AI(yes bad source but still it can't be that massively wrong) is 3.2 km tall.
Kakashis mud wall was 96.8 km taller, admittedly kakashi nearly died from the chakra usage whilst hashirama fought for an entire day after that but still, what in the actual hell.
Edit: did rough math. The average mountain is 1500-2000metres so 1.5-2km. kurama is about the size of a mountain and hashirama Buddha is 6-8 times that so 16km by the high end. So kakashis mud wall is 84km taller.