4745454b :
What appeals to you? Note is great if you want a large phone, one you can draw on. The M8 is a great general phone. G3 has the largest screen in terms of pixels. The S5 is only ok, the nicest thing about it is being water resistant. Moto X? Uhm, not sure.
I just picked up the Oneplus One. Read my review on this forum. Great phone, great no contract price.
Just to add what 4745454b said, The Moto X 2013 is a decent phone if you have small hands or like to have near stock android experience. Although no microSD which is a downer for both 2013 and 2014.
The special thing about the 2014 model is the Software: Moto Voice, Active Display etc.. If you always or want to use Google Now, its a good choice since it can listen to you whether the screen is on or off. It's only a good choice if you have unlimited data plan, since if you're outside, Google Now relies on data.
2014 model has decent hardware. Even if it seems underpowered to the S5, Note 4 or M8, the main thing is that there isn't much bloat on the phone so it should run smooth.
The LG G3 may have a 1440p and slightly higher DPI, the colour depth isn't great. The Note 4 has a 1440p screen but the colour is better on that.