I don't have a dog in the fight
I will gain no matter who wins. I don't develop mobile software other than for a browser. I have an Android phone and no contract. I don't want a contract and I don't want to spend more money on any phone right now.
I just want to call my Mom, text my sister, ask my wife what she wants for dinner, reply to my boss's email, take a decent snapshot, get directions when I go out of town, and have something to do while I'm killing time in an airport. I can do all that with my phone.
When I have a need for a phone with greater capabilities, higher performance, better camera, or whatever, I will review my options and make a decision. In the mean time, Google, Apple and Microsoft, have at it. Play feature topping games like crazy! Fight for content control. Babble on about "ecosystem" bull shit. Beat the crap out of one another. I'm sure one of you will get to be king of the mountain for a while.
When buying a new phone makes sense for me, I will see who is on top and decide if their phone, with all its bells and whistles, is worth my money.
However, if anyone wants to give me a new phone, I would love to have a Moto X, LG G2, HTC One, Nexus 4 (or 5, if it takes you a while to decide what to buy for me). Hell, I guess I would even take a new iPhone 5S, if it was free.
Gotta go now. I need to call Mom.