The best picks of the year 2014 and opening of 2015

Hi!
I want to know what are the best gadgets of 2014? Can you tell me what are the best mobile phones and android phones? Can you tell me why is it the best? What are the cheapest phones available now in the market? Can you tell me what are the specifications and the best picture of each? How much is it in the market if I want to purchase one? What are the edge of each and should I buy those if I decided to replace my smart phone? Please provide me feedback.
Thank you!
