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I have the white iPhone 5 as my first iPhone ever but the black iPhone 4S still attracts my attention..... Tempting
 
I love the 4S design, but next to the 5 it looks somehow old-fashioned.

I'd say that the 5 is my favourite, closely followed by the 4/4S, then the 3GS (I'm not really a fan of the original style, although I don't deny its great build quality).
 
The chrome rim on the original iPhone is still so attractive to me

iPhone original > iPhone 4S black > iPhone 5 white > iPhone 3G
 
iPhone 4/4s
The iPhone 5 looks and feels like cheap plastic. For that matter, so does the iPad Mini. Even though it is aluminium, the awful anodisation makes it look tacky.
 
Guys, before knocking other people's opinions - beauty is in the eye of the beholder.

For me - it has to be the original iPhone.
 
I thought it was the 4/4S until I sold my iPhone 5 to get one. Within days I was missing the chamfered bezel and the barely distinguishable screen lines on the 5.
 
Probably the iPhone 4 - at the time, it was the sleekest piece of tech I'd ever seen.
Then the 2G, then very closely followed by the 5. Then the horrid plastic 3G/S.
 
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