I have an Atheist friend and he says that he doesn't like to talk about atheism much (not in a positive way anyway) because then it becomes a form of idea-reinforcement. He believes that people go to church to reinforce the irrational beliefs imposed upon them by organized religion. He says that this is done because such beliefs are so disjointed from the real world that it actually needs repetitive reinforcement in order for people to retain faith.
I think my friend is a pretty good atheist because he doesn't want to be convinced that there is no god, in fact, he enjoys talking to Christians who are trying to convert him because he wishes there was a gad, but he strongly believes that there is none.
Personally, I am agnostic because I just don't know and I think proof is an important means of validation. To me, the word 'faith' is a euphemism for 'gullible', and I will not be gullible; I need strong proof in order to fully believe in something.
I must say though, I have taken a liking to Naturalistic Pantheism; although it's more of a philosophical view than a religion, I like the fact that you can prove it logically. Basically, Naturalistic Pantheism takes an alternate view on the definitions of 'god', for example take this definition from dictionary.com:
A being conceived as the perfect, omnipotent, omniscient originator and ruler of the universe...
Now under Naturalistic Pantheism, we take the view that the universe itself if god because it matches all of the properties of god; the universe is omnipotent (all that can possibly be done, can be done by the universe because the universe embodies all existence and all power that exists), it's omniscient because it embodies all knowledge (for example, all that mankind will ever discover is a discovery made by the universe) we can't discover something unless the universe already knows about it (hence making it exists), now we know that the universe is ruler of itself because the universe embodies everything that exists including itself also, the universe originated itself and keeps recreating itself via the big bang. So yeah, by that interpretation of the literal translation; the universe is god and I've proven that god exists in this way. Although it's a solid case, this theology is merely a play on words; that's why if someone asks me if I believe in god in the traditional (not literal) sense, then I'll say that I'm agnostic.