It depends upon your trade. Auto mechanics? Probably not so much. Electricians (me), HVAC, electronics tech, appliance repair, or process machinery control techs use them all the time. Magnetic 99% of the time.
I like a mix of both short and longer shaft models. 1/4, 5/16, 11/32, and 3/8 see almost all my use. I have the 3/16, 7/16, 1/2, and I think 9/16. I couldn't tell you the last time I used them. It was simply cheaper to buy the set. Klein cushion grips in Imperial long and short and metric short.
If I had to limit it to one type it would be the hollow long shaft magnetic models. I wouldn't mind trying some Wiha and PB Swiss. This is one type of driver that really needs a grip to fit the hand well. It is inevitible that you will try to remove a fastener that is well beyond what you should be trying to apply manual torque to.