I'm definately on board with powered speakers. The Preamps in the VlZ Pro series Mackies are actually pretty good. Audio quality wise, the vlz will smoke that Peavey, hands down. Not a fan of the Peavey FX boards...
Then again, I would go digitial and be done with it. A used 16.4.2 guves you everything you will likely everned in a board and all the outboard gear you could want.
In my case size matters. I have to pack PA, lights, rig, basses, wife... In. Subaru Outback... kSub, K10's plus, JBL PRX612m's as monitors. 16.4.2 in a flight case, cable bag and stands. Is about as small as a really good sounding system can get. It is also super easy to setup. I have EQ curves setup for most of the venues I play and scenes setup for the different groups I play with or do sound for.
Small places where I don't meed the sub, I put the 612's up as mains and run the 10's as monitors. The 612's are warm but clear and the bigger box has a more natural low end. The K10's on Ksub setup rocks though. It's good to have options...
Well not my experience and I have owned 5 Mackie mixers. The feature set on the fx is way better than the mixer the OP is looking at. more channels, stereo 28 band EQ, A feedback ferret, crossover,delay, parametric EQ, more auxes available for more monitor mixes. Built in effects also.