Gigabytes are a bit stronger for the same price. The extra PCIe power connection allows for more headroom for overclocking (if you're into BIOS flashing etc). I have one of both in my small rig, and I must say, I'd buy another Gigabyte if I would invest again
![Wink](https://bitcointalk.org/Smileys/default/wink.gif)
But yes, the EVGA has more resell value since you need no PCIe power connections, so you could sell it to your neighbor who has a crappy onboard VGA and can't stream his full HD movies anymore
So, they look on par. Just go with the GPU you think is the most beautiful
![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
Aesthetics are important too.