I have an iPhone 5, iPhone 4s and an older Android HTC Inspire. By far I find the Nokia 920 superior, for reasons not included above:
1. Unlike Android and Blackberry, it has complete vertical integration, if fully integrating your phone to an entire system is important to you.
2. Call quality is far superior to all the other aforementioned phones.
3. Just as simple to use as an iPhone, but offers greater customization.
4. Output volume far exceeds the others. When using Apple navigation, I would often have to lift up the phone to my ear just to hear the voice prompts. Nokia is loud and clear.
5. Re-sizing the fonts. Since I need to use reading glasses, this can be problematic when receiving a text while driving. Before driving, I enlarge the font size and can proceed safely.
6. Granted, it does not have a gadzillion apps like the iPhone; but let's face it, 99.99% of those apps are junk that no one will ever use anyways. Nokia has all the apps one is most likely to use: social networking, travel, tasks, world time, units converting, and music. Granted that Apple has an app available for whatever special interest ANY person may want, whereas at this time Nokia is limited to having only apps that most people would want.
7. I keep seeing side-by-side pictures by reviewers that show the Nokia camera looking bland next to the iPhone 5/4s. I find the pictures from the Nokia to be every bit as good as the iPhone's. Perhaps these reviewers need to check their settings.