Don't even think about the Razer Blade. It's an overpriced, weak laptop which overheats on every given minute. Pls no.
The Asus G750 looks solid. No idea about the price though. If it's within your budget, sure why not.
In general I'd advise against a laptop if you are looking for performance. For the price of that Asus G750 you can easily get a high-end gaming PC. On the other hand, if you prefer having a laptop and you have no problem with paying more for it, that won't be a problem.