I go with Zoro, Oden, Ryuma. Ryuma was said to be on equal terms Joyboy and I believe Joyboy in prime could've defeated Imu (WE DON'T KNOW IMU'S POWER SO PLEASE DONT FLAME ME). I then think Oden and Zoro would overpower Luffy. Luffy's only weakness is swords so that is horrible for him. He might win a fight against them but if Ryuma win's the fight against Joyboy (Its like a 50 50) then Ryuma will just come over to Oden and Zoro and just solo him. Yonko's are just nothing to Ryuma to. GG.

@Mychairisbetter when was it stated that ryuma~joyboy?

Also all yonkos ever means: Buggy (who ryuma can't beat), prime whitebeard, big mom, kaido, shanks, and blackbeard. Ryuma is getting no diffed by them. There's nobody in one pieces story that could take on 3+ yonkos and win (even xebec lost against 2 yonko level adversaries in a high-extreme diff battle, let's not scale power on opinions)

Also this post is really iffy because we know nothing about ryuma, joyboy, or imu's power.

Zoro gets taken down with one hit by any of the Yonko and Oden by two hits (it took Kaido one). I doubt Ryuma was as powerful as the Yonko. I doubt Imu alone can deal with two Yonko, let alone all of them and Luffy could barely handle a weakened Kaido.

All Yonkos win low diff.

Luffy vs all the yankos luffy himself is a yanko so luffy<luffy+rando

Ryuma caught my eye but then I realized that all yonkos together could probably destroy the earth and by default everybody on it

Buddy, we have like 6 yonkos here. Of course the yonkos win this. Imu isn't doing crap against multiple nukers. Neither is zoro who can't beat a yonko. Ryuma is probably only as strong as a yonko and even if he was stronger than roger, he would loes to two yonkos.