What to choose, 4x laptops models. Need help pls

[nvis]

Hello. Im interest what should i choose. Now im interest on 4 laptop models for price that can i pay. Which one is best of them? Looking laptop to be good for 2-3year.

Here's the models:

1. MSI GL72 6QF 17.3
i7-6700HQ
8Gb DDR4
GeForce GTX 960M 2GB GDDR5
1Tb HDD
Warranty 2 year.

2. Dell Inspiron 15(7559)15.6"
i7-6700HQ
8Gb DDR3
GeForce GTX 960M 4GB GDDR5
1TB + 8GB flash SSHD
Warranty 3 year.

3.Lenovo Y700 15.6"
i7-6700HQ
8GB DDR4
1Tb HDD
GeForce GTX 960M 4GB GDDR5
Warranty 2 year.

4. Rog Asus G751jt 17.3" (REFURBISHED)
i7-4720HQ
8Gb DDR3
1Tb HDD+ 128GB SSD
GeForce GTX 970m 3GB
Warranty 6 month.

Please, tell me which one is best of these. Last one looks good but its refurbished and with 6 month warranty only. All of these models price are same.

Thanks for answers and sorry for my bad english.

 

[nvis]

Any advice?;/