Here it is said that Mr. Sinister is the greatest geneticist in the Marvel Universe. But I saw on one site it is the High Evolutionary is the greatest geneticist in the Marvel Universe. Can anyone prove who is really the best..

"Perhaps the greatest" means he's at the top but may not be the very best. HE is the actual best as far as I know, but Sinister is up there too.

I would place Sinister second after High Evolutionary.

Is there ever really a greatest in comics???

But in all seriousness yeah I agree Fesak.

While the High Evolutionary may have better tech up at Wundagore, Sinister has accomplished much, much more. This is the man who gave us Cable and Madelyne Pryor. He had the ability to clone new copies of the Marauders seemingly at will...What has the High Evolutionary ever really done? Created some Ani-Men and once stripped all the mutants on earth of their x-gene. Sinister also had a hand in that, however. I'd definitely put Sinister before the High Evolutionary.