Menma beats Nagato, 9 Masked beasts + Nuke + Kyuubi. It's just Naruto vs pain all over again, but with 100% kyuubi, 9 akatsuki level summons and evil killing intent.
His nuke is made of chakra, Preta Path would easily absorb it. Also, did you even watch the movie? 9 Masked Beasts are the Dark Kyuubi split apart, he can't use both at the same time, and if he relies on those alone, Nagato uses his summons and rapes them.
If he uses Kyuubi, its offense is absorbed or shot back at him via Shinra Tensei. Menma gets a BT+Soul Rip.
Menma OWNS Sasuke, his Susano'o doesn't have what it takes to tank what's in my sig.
What's in your sig is weaker than Bijuu Dama. PS already tanked something far above the Bijuu Dama that Bijuu 2-7 used. Sasuke tanks it and lights him up with Enton.
Madara/Hashirama and MAYBE BSM Naruto are the only ones who have a chance.
Naruto is a better version of Menma. Better defense, better offense, more speed, better reactions. Naruto would rape him.
Hashirama shits on Bijuu all day every day, he already tanked something far greater than anything Menma can produce. He'd rape Menma.
Madara wins because PS already tanked something far above anything Menma can produce, he gets bisected by PS Blades.