A lot of people find Apple maps to be a problem but it has not for me since I have nav in my car. On AT&T in Atlanta LTE speeds regularly exceed 50mbps. The new CPU and improvements to Safari mean web pages load almost instantly. Basically it does everything the 4S did better with a slightly larger screen. New Do Not Disturb feature in iOS 6 is a welcome addition.
Along with the S3 and the iPhone 5 if you wait a couple of months the Lumia 920 Windows Mobile 8 phone will be out and may be the superior piece of hardware amongst the three.
2013 Audi A4 - Premium+/Sport/MMI/B+O Audio
2007 BMW E90 335i (retired)