No preference. Just any laptop which I should not be required to upgrade any time soon.
This is my current laptop:
Dell 15.6-Inch Gaming Laptop (6th Gen Intel Quad-Core i5-6300HQ Processor up to 3.2GHz, 8GB DDR3, 256GB SSD, Nvidia GeForce GTX 960M, Windows 10)
I added 8gb RAM and 1TB HD to this.