Ahh Which One :(

Solution
As they are all reference, i would say either the ASUS card for the voltage tweak software, or the XFX for the double lifetime warranty. Depends on if you want the max possible OC out of your card, if you do then go for the ASUS so you can up the voltage a bit.
As they are all reference, i would say either the ASUS card for the voltage tweak software, or the XFX for the double lifetime warranty. Depends on if you want the max possible OC out of your card, if you do then go for the ASUS so you can up the voltage a bit.
 
Solution