Oh forgot to say my opinion 😀
When I first saw the iPhone I liked it, but I wasnt a fan of its back.
But since I got my Touch I just cant stand the look/feel of the iPhone! Its sooo thick, the back now definitely looks ugly and the display bezel isn't as nice as on Touch.
As for scratches on the back... well I've owned my touch for over a month and a half now and I have zero scratches on its back. I always carry it in iPod Sock and never let anyone put touch on a table without some cloth beneath.