Always using- my fairly cheap Draper Expert p-handled allens (don’t judge me- they’re randomly excellent), Teng screwdriver set, the Bahco 1/2 inches that live in the car (just because they live in the car really), and my cheap orange black and decker electric screwdriver. Hammer of Thor that my grandad stole from the RAF, so I didn’t feel guilty about stealing from him.
Rarely use- circlip pliars. But after, many years ago, discovering that my cheap circlip pliars couldn’t get a ring off the shift detente spring in my bike, meaning that having spent about 2 hours opening the engine up I then had to put it all back together without achieving any of the things I wanted to, including using up a brand new gasket set, so I could ride it to work the next day… Well, I bought some very nice circlip pliars. And I’ve used them maybe 20 times total but quite a few of those times, it’s been some job where not having them would have been a total bastard.