I personally like the clevo machines for a gaming notebook. I just recently bought the Eurocom x6. It has a 6700k, 32gb 2400ddr4 memory, gtx980m, and 2 -512gb 950pro in raid 0. It seems to run games just fine. I am not sure if it will run WoW and Diablo 3 on Ultra but I am sure it will run it fine at a slightly lower setting if not ultra. Also, you can opt for the larger Eurocom machine DLX7 if you want one with a desktop 980 gpu and a 6700k.
eurocom.com is where I bought mine, they seem to be cheaper than most other clevo resellers and has a 10% student discount.
For the Asus ROG, I would rather G752 but not GL series! I don't really like the GL series appearance (with plastic top case)
of you do really care about the probability, I will say MSI and Alienware also have the same characters!
If I were you, I'll also look at MSI and Alienware. Other than the spec, I'd also check the gaming features they have, which are usually not listed on the spec sheet. And, I would google the better quality and lifetime as my reference.