Hello Tom,, welcome to the community...
I can give you a shout out for the Milwaukee. I have one in my table and she's been a workhorse. Handling everything I've thrown at her with ease and without issue. Either one of the three mentioned would be a good choice. Of late, I have read of some 'quality' issues with the Porter Cable products..who knows?? If you go with a Triton, I'm certain, finding one wouldn't be to difficult.
The point made regarding having a plunge option is a good one. Unless you're operating at commercial volume, a good 2 1/2hp unit with an optional plunge base would give you considerably more options. My Milwaukee has never been out of my table, except for cleaning. Early on (prior to have purchase other routers) I would have liked to have had a plunge option available on a bigger router.
"..... limited only by imagination"
"Just smile and wave boys, smile and wave"
Skipper the Penguin