I don't know if favorite but I use it a crazy amount. I have an older version but basically the same thing. I like having clutch limiter for putting in screws while contorting or reaching over head. Small enough to put in my pocket and powerful enough for mostly anything except big lag screws or holes over 1/2"
My favorite tool is probably this indulgance. Snap on 3/8 flex head soft grip ratchet. I'll toss aside most of my pedestrian ratchets trying to find it. No more effective than the lesser brands really, but a joy to use.
holy crap 170$ online, I bought at a pawn shop for 75$ I think. Pricing is absurd even at a discount