WWW.

Menma Namikaze (Prime)

Or Naruto Uzumaki (Prime)

Menma definitely has an advantage over Naruto since He has a Higher IQ and More experience with Kurama. He could actually go into Kurama avatar without going into KCM with I don’t think Naruto has ever done in cannon

But technically, Naruto has experienced Fighting tailed beast. He beat the One tails as a kid

Thrown hands with Kurama when an entire Village + Minato and Hruzin couldn’t do that.

And fought the 2-7 tailed beast in the war.

And we don’t talk about how Naruto and The ten tails be boxing

And since the 4th great Ninja war never happened on Menma’s dimension, Menma doesn’t have Six paths so he’ll get destroyed by Naruto’s truth seeking orbs

And Menma haven’t shown anything close of Naruto’s speed, durability, strength, or BIQ.

So Naruto solo