A few other observations after using my Nexus 4 as my primary phone for the last 3 weeks. This would be compared to my iPhone 4S, as I never went for the 5.
One thing that is standing out to me is screen brightness, or rather viewability in bright sun or daylight. Clearly my iPhone 4S is brighter outdoors. Both are set to auto brightness but the 4S is still easy to see where the N4 is a struggle (Arizona).
I can crank the brightness up manually on the Nexus 4 but it doesn't really "pop" anywhere close to my 4S unless I go to 75%-100%. If I forced my 4S that high it is even brighter. Also, the brightness at 100% really kills the batter, obviously.
But still, the iPhone 4S definitely seems to crank up the brightness better in bright light. Why doesn't the N4? If the screen is barely readable in blazing sun, yet is readable at 100%, why isn't it going to 100%? And if it is going to be conservative in auto mode why not give me a range of preferences? I am not in the sun that much where I would mind if it cranked it up higher when needed. To be clear, when you set the display on the N4 to auto it does not matter what you had it set to before: it always uses the same setting for auto. The iPhone is the same but it is more aggressive in turning up the brightness.
While I am at it screen brightness would not be as big a deal if the OS wasn't so danged dark-looking. My N4 has a backlit LCD, not AMOLED so having black screens only hurts me. Heck I could say, since the light blocked by the shaded LCDs to create black is absorbed, that it only makes the device warmer and is a waste of power. My LCD lamp runs all the time, why is it covered up so much by using black? If Android wants to cater to AMOLED displays it should also have a "backlit LCD" setting that is much whiter. IMO of course.
Next up is the phone app. From a company that started as a search engine, I am kind of shocked how brain-dead searching is when trying to make a simple phone call. It searches only if you type the first characters correctly? Seriously?? I am shocked and annoyed as heck by that. If I want to call Little Lin's Chinese I had damned well search by Little not Lin's because the latter will not be found. Unless I use the completely-different looking People app? WTF?
Speaking of searching, I miss Spotlight. It was my go-to search screen on iOS. And I used it a lot, even for launching apps. Google Now does not seem as fast or easy to use. Perhaps I need to get used to it.
Finally, I should note that indoors the screen on my N4 is fine. Looks very pleasing to the eye without being garish. It is outdoors that I have an issue.
Michael