Supermen royal rumble

Who would be the last Superman standing if all of these versions were teleported ("Secret Wars" style) to an indestructible planet and had to fight to the death?

Current Supes
Injustice Supes
Pre-DCnU Supes
Red Son Supes
All Star Superman
Son of Darkseid Supes
OWAW Supes
Kingdom Come Superman
Superman One Million (I'm leaning towards this one)

I'm sure there's more but that's all I can think of at the moment. If you wanna add some to the mix go ahead.

No prep.
No BFR.
To the death only.

Injustice Supes made Ganthet see the universe in his eyes and warped reality around him while flying a lantern planet into the sun. He stomps.

Superman One Million
Injustice Superman (with Ring)
OWAW Superman
KC Superman
Current Superman/Pre DCnU Superman
Red Son Superman
Son of Darkseid Superman

Though except for Injustice and Son of Darkseid no one would kill, so those two by default should be last standing.

Well, for the purposes of this thread I wanted to see who would win if everyone were fighting to the death. So, assume that for whatever reason that they're all willing to kill and holding nothing back from the get-go.

I left out PC Superman on purpose because of his ridiculously OP feats.