Actually avast with game mode, is fps boost comparing to windows defender when doing hard gaming, but theres tons of ways to optimize so av shouldnt matter in this case
But when doing light gaming, web browsing etc. its hard to compare wich av impacts most on your system resources
I dont get the hate against windows defender, only thing it lacks cuztomization wich is good for non-advanced people and bad for advanced users in some cases
Avast has ads
Kaspersky still injecting on browser, probably fixed on new build?
My vote goes to AVG, it has avast signatures + behaviour blocker without any ads/nag screens. Install and forget, probably harden it with syshardener or OSarmor, comodo firewall, voodooshield or any other software of your like