I found this site on google too. I found happyatheist first. But then when I found this site, I was hooked :p
I could call myself many things too:All the ones you listed. And also agnostic (because as Adrian rightly says on his blog, atheism and agnosticism and not mutually exclusive).
I could in full call myself something like: A monist, materialist, reductionist, neo-darwinian, secular humanist, freethinking, Pastafarian, militant de facto atheist.
And to give a brief summary of it: Militant de facto Atheist.
But I think in short: Atheist
Evf
I could call myself many things too:All the ones you listed. And also agnostic (because as Adrian rightly says on his blog, atheism and agnosticism and not mutually exclusive).
I could in full call myself something like: A monist, materialist, reductionist, neo-darwinian, secular humanist, freethinking, Pastafarian, militant de facto atheist.
And to give a brief summary of it: Militant de facto Atheist.
But I think in short: Atheist

Evf