I've been travelling through europe the past 2 weeks, and I'd have to say that 80-90% of people I see with smartphones are using iPhones. SamDung's are practically non-existant with the remainder being either older model blackberry's or Nokia.
The fact is, people in cities like Paris, London and Amsterdam wouldn't be caught dead with a SamJunk phone. iPhone is THE status symbol in the first world (soon to be China too, watch).
It's only the cretins and low-information consumers that end up using the samsung models.
In the US it's basically Apple haters and once again, low-information consumers.