I am always carrying either two cell phones or zero, depending on the site security of my workplace. I carry a work phone and a personal one. My personal phone has always been an iPhone, but I like to experiment with my work ones.
I have been fortunate to get as my latest work phone the Nokia 928 Windows Phone. I'm a fan of the Windows Phone OS, and version 8 is an improvement over the Mango version. It has the same tile format as Windows 8 and Xbox 360, and on mobile devices is where that format works the best. Where iOS is more an app and media consumption ecosystem, Windows Phone takes a more integrated approach. This actually makes Windows Phone a better device for pure communication, IMHO.
The construction of the 928 is beautiful. The matte painting on the aluminum with the large OLED screen are a great combination together. Battery life is good, but not great.
My only issue with it so far is its ability to sync with my Windows 7 PC. Prior versions of Windows Phone used Zune to sync, and this worked extremely well. They have abandoned that and went with a new Windows Phone sync system that does not work most of the time and is unintuitive when it does. It is like they reinvented the wheel, but in a square shape.
Overall, I like the phone, and I look forward to the next 18 months with it.