Graphics Card - Which is better?

[EzekialRitchie]

I am planning on building a new gaming computer. I am sure of what components to get....
Besides the graphics card. I am having trouble choosing between the Radeon R9 290X and the
GeForce GTX 770. They are both about the same price range and given that I am fairly new to this
Process of choosing components I am asking for your opinion. If you feel as if you need to look at my other components, please do so by visiting this pastebin link: http://pastebin.com/UiA3Acs1
Also, for specifications, here are the Graphics Cards' links:

Radeon R9 290X: http://www.amazon.com/gp/aw/d/B00GRNUNQU/ref=mp_s_a_1_9?qid=1411493336&sr=8-9&pi=AC_SX110_SY165_QL70

GeForce GTX 770: http://www.amazon.com/gp/aw/d/B00CZIQXBA/ref=mp_s_a_1_fkmr0_1?qid=1411493420&sr=8-1-fkmr0&pi=AC_SX110_SY165_QL70

Please, feel free to comment and state your opinion. Make sure to take into consideration my other components (To make sure that either one of these graphics cards will work best with my build)
Also, if you believe that neither of these are good options, please state what GPU you think is best.
Thank you SOO much for your time.

[InfamousMyzt]

Here's a list of high end GPU benchmarks:
http://www.videocardbenchmark.net/high_end_gpus.html

The Radeon is better, but I'm a little biased. I would always pick nVidia over AMD, but it's personal opinion. Kind of.