I would agree with this. Seems to me, to stereotype, that the Ativ S is the phone for engineering students and the Lumia 900 is the phone for humanities students.
The Galaxy S3 wins the spec war and the objective utility war. Bigger screen, lower weight, replacable battery, etc. But even people who really like it (like me) can't say much for its aesthetic or its personality. It's a well-executed electronic device utterly devoid of any unique identity or personality.
The Lumia 920 is the most boldly-styled phone on the market today...identifiable from a hundred paces. Nokia's exclusive apps help add to the "greater ownership experience." And the case it shares with the 900 has a reassuring subjective "solidity" in the hand, even if it is heavy, slippery, and doesn't allow battery replacement. The camera was the one and only thing where it might have an objective spec advantage over the Ativ S, and it turns out it won't there either.
Both are appealing phones, but the manner in which they're appealing is night and day.