Trying to buy a video editing laptop and I can't choose which one I want?

After a 3 month search i've finally narrowed down my laptop choices to these three:
1. http://www.frostsupermart.com/asus-rog-gl551jm-dh71-156-gaming-notebook-intel-core-i7-4710hq-16gb-ram-nvidia-geforce-gtx-860m-2gb-1tb-hdd-windows-81-428-p.asp

2. http://www.ebay.com/...EBIDX%3AIT

3. http://www.ebay.com/...1624467096

I'm in college so I can't get a desktop, and I need something in the 800 range because i'm on a budget, all of these laptops have all the components I want I just don't know which one is the best out of the bunch

Yes