Once I bought the first 18v Dewalt and some spare batteries, I started buying the "naked" tools without extra batteries.
I would have gone with Bosch because every one of their tools I do have is superb, accurate, holds adjustment, has more than sufficient power. 1617s, Compound Sliding Miter, ROS, lots of bits, blades and lots of accessories that are all top notch, and easy to find replacement and parts, customer service that's outstanding.
I am not dissatisfied in any way with the DeWalt 18v system, and at least they have provided a 20v upgrade path, which is a nice thing. I just recently found DeWalt batteries on sale, two for $99, so I'm fully committed for another several years, since I'm 76, someone is likely to inherit them because they'll outlast me. The DeWalt drills also have torque adjustments (I have two).
I found a paint covered 18 v DeWalt battery laying in the street I live on. Works great and is fairly new. So I'm really charged up.
The more I do, the less I accomplish.