As he was shown in comics (with PIS on) then Thanos still wins. On a PISless forum fight, Onslaught wins with Franklin's powers. Nate doesn't even factor into the equation.
__________________
..even the outer hells are indifferent matters for they bow only to potent and archaic Nodens.
But if Onslaught tried to capture Franklin with PIS off, he would have been annihilated.
Also, I believe it was said that Onslaught couldn't fully tap into their power, either that or Nate was suppressing their powers. I forget which. It's been a long time, if either are actually true.
But hopefully there will be a power retcon or something similar to what they are doing with HoM Wanda in the Children's Crusade. HoM Doom's "white outfit" looks conspicuously like one worn by an avatar of a universal force. We'll see how that goes.
__________________
..even the outer hells are indifferent matters for they bow only to potent and archaic Nodens.
I like to assume it was just Onslaught who couldn't fully tap into them. Hell, in the same arc Franklin creates the Heroes Reborn universe. Onslaught created a sun... ya. At least Eternity got some respect out of that later.
What happened with that series? That shit was a while ago.