Whenever I try to look at another belief-set, I try to set my own Christian biases aside and look at each belief on their own terms. As such, when I see the question "what do Christians think of atheists", I automatically try and set my Christian beliefs aside and look to what atheism entails, before I make any personal judgements.
In that sense, my views of atheism is a highly valued belief (or more correctly, non-belief) system. Most atheists believe that when you die, you die and that's the end (cease to exist), and as such, I can see how many atheists might find life just a little bit more beautiful on a day-to-day point of view. Each day I live as a Christian, I see as a new dawn dedicated to God, but in the back of my mind is always the understanding that whatever happens today, I have eternity to be with God (whatever that may entail).
Atheists have a totally different mindset, and each day is unique unto itself, and without the thoughts of eternity, each day is not just unique, but to be specially savoured (not that Christians don't savour each day, but to use an analogy, imagine I was going to a great banquet - how would my view on that change if I knew that banquet was possibly my last ever, compared to believing they would never end).
I see a potential beauty in that. Knowing that there is an end can be very comforting, and puts an even greater beauty into the life we live each day.
This is my view of "atheism". However, the question was asked about how Christians view "atheists" (those who hold to atheism). In this respect, I have no further comments - I don't make generalisations. I have met lovely atheists, and I have met bitter atheists (just as I have met lovely Christians, and I have met bitter Christians). Atheists are no more or less human than anyone else, and many are lovely people, with a lot to offer society. So I will not generalise how I view "atheists", but simply share what I feel about "atheism".
Best wishes,
~ Regards, PA