Check the hardware specifications for the games that you normally play as well as the specifications for other applications you currently use.
Think ahead and keep in mind that future releases of current software and/or new applications will probably require increased hardware specifications.
Make a list of the application hardware requirements. Compare, item by item, the corresponding laptop's hardware configuration.
Which ever laptop has the overall highest number of matches (i.e., application hardware requirements to laptop's hardware) that would be the laptop to chose.
However, that "requirements" approach is over-simplified. Other factors may be important: weight, battery life, available ports, docking station....
Just add any such requirements to the list and as before, compare.