I wouldn't put Constantine in the religion part by the way. I know he was the first emperor to allow christianity in the Roman empire(he didn't make it the official religion though), but it's unclear if he was a christian him self.

And Paulus had way more influence on christianity then Jesus him self. Without him we would have never heard of him. Jesus didn't call him self christ and he was a Jew till the day he died. And everything written about Jesus in the new testamony is not to be trusted at all.

No matter how everyone tries to spin it, Paulus was the REAL starter of the Christianity we know today. Christianity existed even before Jesus was born as a Jewish sect in the first century b.c, but it was different then the Christianity we know today.

I don't think it matters if Constantine believed it or not, fact is he allowed it to become big, and without that, it probably wouldn't be where it is today. I was actually under the impression he was involved (or at least initiated) in forming a consensus. Basically what gospels to include in the "official" bible whilst making the rest heretical. I'm also fairly sure I remember reading he gave the impression that he was the 13th disciple of Jesus, at least in public.

As for Paulus, that may be true but Jesus is the one that the masses know of now, so he's still been influential, albeit unintentionally.

Yeah, but I think he fits better with civilization(where culture plays an important role, and religion is an important aspect of culture)

Gordon Freeman!
Joking =)
I probably think Albert einstein is a viable candidate
or Euler
Bill Gates