Sengoku and 4 Admirals vs 5 Emperors of the Sea

Ehm..... Emperors. Hard to guess?

Emperors

Yonko

Emperors win.

We don't really know how strong Current Blackbeard is, but he should be Yonko level.

Yonko are above Admirals so Luffy can at least hold his own against any one of them while the Emperors beat their opponents.

Emperors stomp

Admirals body

Marines don't stand a remote chance here with being limited to much earlier versions.

Until we see Akainu awaken the pirates stomp. Sengoku might be the only one capable of beating Kaido given his size, experience and presumably Haki abilities but who’s gonna fight and beat Big Mom or Shanks or even Teach in such a mismatch they’ll have time to assist the others?

Yonko Stomp