Goku kills them all imo. A relatively tiny meteor summoned by Asspull-dara (and lightened) nearly killed the old guy while I'd think Goku's Super KHH could bust it with ease.
In raw power, Goku would stomp in either scenario. However, since the Kage are likely all faster than him at this point and Goku would be helpless if caught in Onoki's Jinton, the Kage win in both scenarios.
Goku stomps Onoki,Gara and A.Mei and tsunade decide to sleep with goku and they have a nice beautiful threesome.Chi chi finds out uses kaioken x123456789012345648497897897564564564565 and Omniverse busts