Mixed bag here.
My "hop in the car & help us out" setup(s): 2 Mackie C300's (main or monitor depending on needs), 2 passive 10" Apogee monitors and 1 12" (rescued from friend's garage, rebuilt them myself) main, 2 QSC K10's, and a pair of passive 15" Apogee's that I drag out for larger setups (heavy & awkward but great sounding)
One company I work for is 100% QSC K-series
Another company I work for is a mix of Meyer (older, passive, heavy) and Apogee (powered) with a set of K12's for grab-n-go shows.
And of course, lots of clubs & small halls with their own various systems…
Edit: that Meyer company I work with got another pair of K12's & I used them all weekend at the Novato Arts & Wine Fest 7th St Stage for monitors (instead of packing the Meyers & their ludicrously heavy amp rack) - worked like a charm all weekend even in full sun > 100degree heat