I still use the iPhone for my daily calls, audio podcasts, WhatsApp and other messaging and music listening but I tend to do more work like email, watching video podcasts, reading books off Kindle and using Flipboard on the Note.
2012 is truly the year for Android phones to shine. Manufacturers such as Samsung and HTC have rolled out a new generation of Android phones not only with (much) larger displays, but with incredible horsepower, true multitasking, very friendly user-oriented interface and tons of other tweaking options.