Question Dell Alienware AW3418DW or LG 34GK950F Ultrawide?

[GenObi]

I have two monitors here that i could use some help and suggestion on which one is better, The Alienware has a price tag of 699 and the lg is 749 US.

 

[Lutfij]

One has Freesync while the other has G-sync, while the refresh rates on both displays are also different. What GPU will you be using to power that display?