616 and Post Crisis / Nu 52 / Rebirth
Through some worlogog shenanagins, Rebirth Darkseid has opened a portal and pulled his Post Crisis and Nu 52 incarnations through to help him.
Surfer
Quasar (Wendell)
BRB
vs. Darkseid ×3
Arena. Equal speed.
Edit: all incarnations of DS are at full power. So no young depowered versions.