SMP from 1 million was said to be like the most powerful being that ever existed gaining loads of powers including 5th dimension powers so i say he wins! rather easily
Gender: Male Location: Drinking gasoline. Pissing napalm.
...No.
Superman-Prime from the DC One Million arc was the original Superman (read that as current Supes, 800+ centuries from now). He had all the same powers as current Supes, but he had 15,000 years sundipping (his Fortress of Solitude was literally in the heart of the sun) so that he was incredibly powerful (presumably).
Superman 1M was the Superman of that era, and he was the one who had 10 extra senses and resistance to magic due to a prior Superman wedding a 5D imp and having a child with her, thus putting new abilities in the Superman Dynasty line.
But anyway, this is most probably Superman Prime from the IC, SC, and FC arcs.
He had the know how to prevent realities from collapsing and rescued the Atom from one that was dying. SMP (1M) also had the ability to grant immense power to other beings, all the powers that SM1M with the exception of additional senses are granted by SMP (1M).
__________________
Graffiti outside Latin class.
Sed quis custodiet ipsos custodes?
A juvenal prank.
well genis's cosmic awareness saw him killing eternity in every single scenario, not to mention he did kill eternity and entropy once before, albeit behind the covers.
on the other hand, prime killed a powered anti monitor..............