This was originally posted over a year and a half ago, but what the hell...
<PERSON> never goes all out. This is the problem with deciding who could beat him. Even when fighting for his life, he restrains himself. Take off those self imposed limits and you have a being who can drop tens of thousands of 50 megaton punches per second, each one landing with the fiery intensity of a universe being born. And as a being who surpasses even <PERSON>'s vaunted intellect and the ability to take in and process information at the speed of light, combined with a body capable of moving, acting, and reacting at those same speeds, he can land each punch from a different angle of his own choosing unless his opponent can move at similar speeds.
Most can't.
This is why Batman's Kryptonite Ring is a security blanket and no more. <PERSON> can reduce <PERSON> to a light-year long smear of subatomic particles before the realization that this was a bad idea makes it from one neural cluster to the other in <PERSON>'s entirely human mind.
Similarly, most of the others mentioned just don't have the speed, even if they have the strength and durability. There is a reason <PERSON> and <PERSON> are go-to guys for fighting <PERSON> and other Kryptonians. They both have the strength, durability, speed, and intellect to keep up. <PERSON> fights dirtier than <PERSON>, which is why <PERSON> sometimes seems weaker, but they really are equally matched.
I'm unsure how well the Green Lanterns would do. 300
If the ring can boost their speed enough to compete, they have a chance. I am certain, however, that the Green Lantern with the best chance wasn't mentioned: <PERSON>. His ring is magical, which we all know is a specific weakness for <PERSON>.
Icon was originally meant to be his universe's version of <PERSON>, just as Majestic was his universe's version. Both have an excellent chance of matching <PERSON>, especially <PERSON>, who was raised and trained as a warrior.
Spectre could end <PERSON> if allowed the power to do so. His power is basically whatever The Presence wants it to be. If The Presence felt <PERSON> needed to be put down, the Spectre could do it.
Any of the Endless could presumably do it as well, but they're anthropomorphic concepts as much as anything else. If Death decides <PERSON> dies, he dies. End of story.
One last suggestion is <PERSON>, especially when empowered as <PERSON>. He's a Daxamite, with all <PERSON>'s powers, plus a <PERSON> ring on top of it. Add in the Ion Entity and <PERSON> is basically a cosmic entity that never gets written as such. 516