Nikon D5100 vs. D3200
I'm using the D3200 with an Eye-Fi card which will download to an iPhone/Android phone, so that doesn't necessarily preclude the D5100 albeit the WU-1A works as a remote as well.
The D5100 has the articulating screen and exposure bracketing while the D3200 has a faster FPS and higher resolution. I prefer the resolution of the D3200 for landscapes.
Can't go wrong with either, but I could see myself tipping towards the 50-300 over the 50-200