The controller vs keyboard-and-mouse debate for competitive games comes down to the genre more than overall "better or worse." Keyboard and Mouse – Generally superior for precision aiming (shooters especially), thanks to direct 1:1 mouse movement versus analog stick acceleration. Also better for games needing many quick, distinct inputs (strategy, MMOs). Controller – Often more comfortable for extended sessions, and aim-assist on console (and sometimes PC crossplay) narrows the precision gap significantly in shooters. Platformers and many action/adventure games are frequently designed around analog stick movement specifically. For competitive shooters specifically, mouse and keyboard has a real, measurable precision advantage, which is why most crossplay shooters give controller players aim assist to help close that gap. Which do you use, and have you ever switched and noticed a real difference in your performance?