Big Dilemma! Need a gaming and entertainment laptop?

There's no such thing as a gaming laptop. Get a desktop for that.
But if you insist on not having an upgradable computer, go for the Asus.

Who said there's no gaming laptop, they're there only that desktops are more powerful. The lenovo contains a later version of Nvidia graphics card, while the asus contains a more powerful processor and has a full hd option, lenovo comes in full HD. Personally i will go with the asus plus they have a reputation in gaming. Remember there are variants without full HD