Gorde-
Either Roadmaster or Blue Ox are quality systems, and most of us have one or the other. I don't think you need to fret over quality with either of those, just how much you are willing to spend. The Falcon All-Terrain has advantages over the next model down, perhaps including such things as load capacity, materials, and arm release design.
We had the Falcon All-Terrain, and a Brakemaster, put on our Explorer when we bought the coach in 2006. Camping World did the initial install in the Willamette Valley, but since the coach was being prepped in Bend, BCS had to finish the job after we took the car over the mountain to them. There were some issues there since towbar installation wasn't BCS' forte at the time, but ultimately they took care of things for us, as always.
Within a year I took the car to Roadmaster headquarters in Portland as I wasn't pleased with how Camping World set up the connection ports on the front bumper area. They spent a couple hours, at virtually no charge, reconfiguring the ports correctly and checking out and tweaking some of the other things Camping World did. I'm fortunate to live so close to Roadmaster, and can attest to their dedication to customer satisfaction and safety. A few years ago, I took coach and Explorer to their newer facility in Vancouver, WA, to have them help improve the hitch configuration, and though I paid for new accessories, it was minimal and the labor was next to nothing or no charge. They know what they're doing.
If you can get to Vancouver at all, I'd personally have Roadmaster themselves do the install; but a lot depends on the experience and professionalism of whichever tech at Camping World happens to do the work for you, if you go that route instead. If you are a CW/Good Sam member, I don't know if you factored that discount into the prices you report. Though we use the Brakemaster, I am envious of the Evenbrake (I meant Invisibrake) as it's smaller and seems a smidge less effort to use; but I wouldn't give up my Brakemaster for the extra cost now.
Make sure you've considered what may have to be done to the lower front of your new car so the adapters can extend out to the bracket, and how difficult it will be to remove the adapters when you don't need them, and later reinstall them. I prefer to take them off when the coach is "stored", as they stick out where I and others can snag legs on them walking around the car in the garage or parking lots, and they're unnecessarily exposed to the weather longer than they need to be if left on year-round. But it can be a somewhat dirty job getting under the front end and fenagling pins and bars.
Also, our '97 Explorer only needed a neutral tow switch installed at a Ford dealer in Bend. New Fords these days, except the F150 4x4 I think, need a bit more prep for towing daily, so understand what you'll be in for there and obey the procedures religiously; a blown tranny may not be warranted if you don't. I understand the C-Max is towable, but make sure your specific engine and drive-train is, because not all configurations within a particular manufacturer's model line are - like some Eco-boost engine setups. And don't exceed the 65 mph speed limitations. Double-check your owner's manual and your January issue of FMC magazine.
After the first year of winter travel behind the coach, the car's grill and hood were plastered with gravel chips, and I was digging (to this day) small gravel bits out of front end crevices. The windshield also had to be replaced. So I added Roadmaster's Guardian (~$400?) and a stow for it on the hitch, and it helped a lot. I would not tow an expensive new car without at least a Guardian, and I'd consider the fabric under-towbar shield that Roadmaster offers as a backup. The rock guard hanging under your coach will not be enough. I would not personally use a fabric cover for the front end, hood, and glass; dirt gets trapped underneath and grinds away on the paint with every micro-movement of the cover.
I made the mistake of leaving the towbar folded on the coach hitch stored outside, at least a couple years sans the towbar cover. The arms seized up from trapped water and subsequent internal rust and dirt. I improved it a bit with a couple hours cleaning and flushing, but one arm was still sticky. Last year I took the bar to Vancouver, and they've been there, done that, and wow what a difference when I got it back. They'd even replaced free some parts with upgraded versions. The restoration labor was $75, their standard fee, even though as it turns out one arm was a smidge bent and the main swivel frozen, which I didn't realize. They graciously explained how I can better care for the towbar, and I now store it in the garage instead of 24/7/365 on the coach hitch. And I put the cover over it whenever it is folded on the coach for any time on the road.
I'd take some time to shop around for additional options and quotes, including perhaps Roadmaster direct. But go with someone with experience and a good reputation for installation workmanship, even if you buy the parts one place and have Roadmaster or someone else (or yourself) install things.
Joel