While using the 5C and the 5S at the same time, I kept coming back to this thought. To me, the 5S now seems like an aluminum MacBook Pro while the 5C seems like one of the old white plastic MacBooks. (Or, if you want to go back even further, a PowerBook versus an iBook.) The 5C feels more approachable — we’ll see if the sales pan out that way.
Nice comparison (though I still disagree on the 5S case).