Which one of these laptops should I get to play Sims 3 ?

The 17.3" HP laptop has the best graphics performance; the Radeon R7 (Bristol Ridge) is a little better than a nVidia 930m. See link below for some game benchmarks. The Sims 3 is a bit old so a graphics core that is overall similar to the performance of a nVidia 930m should be fine for maxing out graphic settings.

https://www.notebookcheck.net/AMD-Radeon-R7-Bristol-Ridge.178593.0.html

 
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Thank you for answering ! I kinda figured the HP would be the best one since it's a bit more expensive than the other two.