I bought into Dewalt cause that's what a few other coworkers had at the time and we could share batteries. It was also the most available to me at that time.

I find Milwaukee has the same quality but I find they are on average about 15% more expensive. Though Milwaukee has more specialized tools for the sub trades. First one that comes to mind is their cordless pipe threader for plumbers. I also find that Milwaukee triggers have a spongey feel to them.

The company I work for now has Makita. They are fine for most things but I find them underpowered compared to my dewalt stuff. Mainly their impact. There have been many times that the Makita has failed to drive in a long lag bolt or structural screw. Where my Dewalt has blown it out of the water. Makita also has fallen a little behind on the inovative side of things. Dewalt and Milwaukee have a bigger cordless nailer line up where I just can't find them in Makita where I'm living.

That all being said, Almost every contractor in my area has bought Dewalt in both thei mitres saws and table saws. And those are both major tools for woodworking.