AEON
Rock n' Roll Doggie Band-aid
Given that the very first person on your list is Albert Einstein, a man who explicitly denied the existence of a personal God and described the God of Judaism as a childish superstition I wouldn't put too much stock in it.
Throwing out great minds of history as exemplars of smart Christians without noting the social setting of the time is dishonest, for instance Giordano Bruno was burnt at the stake for heresy (an illustration of religious tolerance), and Galileo was threatened with torture and imprisoned for asserting Copernicanism. David Hume is an interesting choice as well, I suspect that the writer of On Miracles would be a new atheist if he were alive today.
You are throwing out names left right and centre, but even if you were giving an honest list this says nothing about the level of education and intelligence of the group. If you take 10,000 Christians and 10,000 disbelievers it is overwhelmingly likely that the disbelievers will be better educated on average.
I have to repeat it so many times, even if as a group disbelievers are smarter, this doesn't mean that all Christians aren't.
The list mentions those who had even a small faith in "some" God - not necessarily a personal one. A few Einstein quotes:
."I want to know how God created this world. I am not interested in this or that phenomenon, in the spectrum of this or that element. I want to know His thoughts; the rest are details."
"Science without religion is lame. Religion without science is blind."
"My religion consists of a humble admiration of the illimitable superior spirit who reveals himself in the slight details we are able to perceive with our frail and feeble mind."
Does this make him a Christian? Not at all. My only point was that he was a genius and even he acknowledged some sort of God.
You are probably right that on average atheists are smarter and more educated than Christians, but I am certain as a scientist you would see that this fact would not necessarily make atheism true. I would contend that the "bottom intellectual rung" of Christianity more than skews the numbers. If you took the best and brightest of both camps, I would imagine you find them nearly equal.