I want a good gaming laptop under a budget of 1600$?

i was looking for a good gaming laptop under a budget of 1600$ and found some good ones and finalised the list down to two Dell 17.3" Alienware 17 R3 Notebook and ASUS 17.3" Republic of Gamers G752VT Gaming Noteboob and i cant decide between the two i need some help
Added (1). but i think that alieware dosent support gsync and it has vsync what should i do about that

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