The Asus G750 is what i'm using right now. It's a beast.
It has a godly cooling system unlike most laptops and an easy-access maintenance port which means you won't accidentally void your warranty cleaning it.
As far as power is concerned, it's top of the line as far as laptops go. If you want a laptop, you aren't going to get much better.
As for the Razer Blade, it's really expensive and although it's powerful, i'd suggest that it isn't as well designed as the ROG.
Cyberpower makes plastic shite mainly. Them and Toshiba, don't be tempted.