I own an 18v Bosch for my "main" hole drilling/misc needs driver with two Ion batteries, and is as strong today as when new (5 yrs +/-), even with my abuse! I also own a Bosch 12v drill/driver with three Ion batteries for my screwing of mostly pocket hole screws and "sheet rock" screws (mostly in name only). This tool is likewise abused, and is probably the most used tool in the shop, other than a tape measure, square, and pencil. If I were to replace either of these work horses, I'd stay with the Bosch brand, but use the impact versions. A cab shop I worked in a couple of years ago used 12v Bosch impacters exclusively (for screwing), and although they were a bit louder, never shirked from screws of any length or girth. I've used the 18v Dewalt and it seems a bit heavier, but suppose it is as competent. I've owned PC, Skill, Craftsman, Kowisoki (spelling), and off-brands and nothing I have ever owned or used has excelled the Bosches I own. IMO, when you have a winner, why change.