So, I know this has been a debate for some time, but I still wanted to make this post regardless.

We know that yuta, with the help of todo (the goat), managed to decapitate kenjaku after his fight with takaba. Well what if todo wasn't there to assist him and a prolonged fight ensued? Who would come out on top? Let's first look at their respective abilities.

Kenjaku:   
Open-barrier domain with refinement only behind tengen's

A near endless supply of cursed spirits (with at least 5 special grades) from which he can spam mini uzumakis

A second cursed technique that weakens gravity WITH its reversal which amplifies gravity

H2H skills on par with gojo's

implied to have HWB and simple domain

Implied to have the highest iq in the series

Yuta:  
Multiple cursed techniques (cursed speech, sky manipulation, dhruvs technique, charles's precog, shrine and most importantly technique extinguishment)

Rika, from which he can output CE blasts nearly on par with ryu's and utilize every copied cursed technique for 5 minutes using his ring

Advanced RCT (which he can output to 1 shot kenny's cursed spirits)

Second highest CE reserves in the verse

Overall, I'd say the fight goes either way as both of them have good wincons. Kenjaku has his open domain while yuta has jacob's ladder.

If I had to lean toward one of them, I'd lean more toward kenjaku due to the difference in experience and superior domain (from which we saw what he could do to yuki)

Yuta vs Kenjaku