If you're speedrunning, yeah PR is the only good thing. Other than that do whatever, but its still hella helpful to learn how to perfect the Perfect Rush though, coz the damage is craaaaazy.
A single perfect rush legit does TCS damage lmao it's busted it's why they nerfed it in rise. The only other move that I guess is half decent is the back hop into falling bash, that was the primary attack for sns before iceborne