A screen is not a phone. Why the sarcasm? I think you need to read more carefully. I said the AMOLED screen has an edge over the Retina in battery life - meaning power draw. I didn't say a thing about the phone as a whole.
My iPhone 4 outlasts almost any Android phone you care to name, regardless of screen technology.
Well, look at what Android reports as main battery consumer (which you can check on Android), you'll see that the vast majority of their claimed battery consumption is credited to the display :)
I'm not sure if what Android reports is correct, but it is a good indication imho...
My iPhone 4 outlasts almost any Android phone you care to name, regardless of screen technology.