When I sold off all of my Bosch 10.8/12v, several years ago, it was to minimize battery platforms.
With the single exception of the CXS, everything I have is Makita 18v.
One of the guys at work has the DeWalt trim router, I don't really like it too much. It is quite a bit bigger in diameter, not particularly nice to hold.
Dedicated routers is something I can definitely get behind. 4 Bosch Colts, 2 Rigid R2401, and 3 Makita cordless and 1 corded. That's just the trim routers.
One thing I can say about those Milwaukee 18v is that they run very quiet. You can barely hear it run.