Maybe what I like about atheists is that, proportionally speaking, their beliefs are just as shocking as those of the faithful. I wouldn't be surprised if an equal number of believers and atheists would say that God is (or should be), in essence, them, but with virtually limitless power. The temptation to not challenge oneself is rampant on either side. For example, when I see people picketing with signs that say "God hates fags" I have this temptation to run over and say, "Isn't it incredible how you and God just happen to agree on EVERYTHING? That's such an amazing coincidence!" I feel like my beliefs are being challenged in a meaningful way by christians and atheists alike, and it's so rare for atheists to feel like their beliefs are being challenged in a meaningful way. Everyone deserves to have their beliefs challenged, right? It's the best! wunderbar!
Though I have to say, I think atheists have their beliefs challenged all the time, but only in that tiresome abstract way of politicians "WE'RE ALL CHRISTIAN HERE, RIGHT?" pandering. I think they/we are challenged less often in our day-to-day lives.
It inexplicably reminds me of a quote I can't find a source for -- from a review of the move "Contact" based on a book by Carl Sagan and starring Jodie Foster. This world body asks Foster why she should represent Earth to aliens, since 75% of the world believes in some kind of God and she doesn't. The reviewer summarized this as: "Inexplicably, all the world's religions got together and got over their differences in order to annoy Jodie Foster."