Besides being a medic I also taught TQM (Total Quality Management) in the Air Force. Quality is defined as "Meeting customer's needs or expectations". At this moment in time, the iPhone 4s does that best for me. In so much I can easily come up with some complaints about Android, I can certainly do the same about iPhone. That isn't the point. It's about what works best for me or in your case... you!!! nothing more...nothing less...
I suspect that if W.Edwards Deming were still here and he had a smart phone, it wold more than likely be an iPhon4 4s and he would be using Verizon... but then I could be wrong...