Angle grinders are a lot of fun, but I'd have to say either Sawzall or welder. Oh, BFH is always good.
Hatchet/Hammer (not exactly as shown, something with a curved cutting edge. This is all I could find)
Not my fave, but the one I use the most, would be the super sawzall. My fave would be my Bosch table saw: And for the kitchen my KA pro600:
probably my Topeak Multi tool fits in the palm of your hand, breaks off into two pieces, one has a torx driver, philips head, 4, 5, 6, 7, 8 and 9mm alan keys, and a cone wrench. Other side has a 10mm alan, a chain break, knife, beer opener (always important when riding) 8, 9, and 10mm wrenches that lock in place, 14 & 15 gauge spoke wrenches and both sides act as two tire irons in case of a flat.
I have that exact impact. It's a POS. I like my harbor freight one better. My most used would be my craftsmen combo wrenches. It doesn't get any simpler than a wrench. Favorite?