Observation from someone who began building a Patrol, and wound up selling the kit to purchase a flying RANS S-6...
I wish that I had spent more time looking at the support information that comes with these various kits BEFORE falling in love with the finished airplane. I should have spent more time investigating the build manuals and talking candidly with people who were actively building those aircraft to better understand what was involved. I'd helped a couple of people with their RV kits and one BD-4, and thought I had a clue what I was getting into... I did not.
Both the RANS and CC kits are known for high-quality kits that have pretty much everything you're going to need to build the plane. They also have excellent build instructions that are pretty much "step by step" and guide you through 99% of the build process, with their support teams and online community filling in the other 1%. If you follow their process, you'll wind up with a flying airplane with minimal drama.
The Kitfox is more of a "semi-complete" kit and you'll find yourself needing to purchase a lot more "extras" to complete the airplane. Thus, whereas the kit appears to be less expensive than the RANS kit for instance, it will wind up costing about the same because of those "extras". It is also an excellent quality kit with good build instructions that have been fine-tuned over many years. Again, the build manuals will provide 99% of what you need, and the factory support and builder communities can handle the rest.
The Bearhawk factory has a completely different build philosophy. The "Quick Build" kit itself is of extremely high quality (the fuselage welds are little works of art), but it is nowhere near as complete as those other kits. It also does not offer much documentation for the builder... It will take significantly longer to build a Patrol because you'll be spending a LOT more time studying the plans and talking to other builders about how to interpret the plans and then actually build that assembly. There is no "build manual" or "step-by-step" instructions for how to turn your kit into an airplane.
It is much more of a "plans-built" kit than the others. As such, you have many options that you – the builder –must decide for yourself. You will need to source a significant number of components that are not included with the kit. That includes things like wheels, tires, brakes, tail wires, seat belts, ALL of the hardware, covering materials, and a lot more... And while the factory provides a list of "basic hardware" that covers many of the "odd" or "hard to identify" items (right size pulleys, turnbuckles, etc.), and has a deal with Wicks to provide a "hardware kit" for their airplanes at a good discount, it is absolutely NOT a comprehensive kit that includes everything you'll need. Things like nutplates are not necessarily included in sufficient quantities to complete the build. I found myself ordering something from Wicks, Aircraft Spruce, or one of the other suppliers at least once a month, and often having to halt progress while I waited for the hardware to arrive.
My biggest surprise when I started my Patrol build was how little (perhaps "nonexistent" would be a better description) documentation came with the kit about the build process itself. The plans are excellent (old school, hand drawn to scale – no CAD here) and there is a small booklet with some illustrations and guidance about some key steps you'll be doing along the way (pictures of how the seats install, etc.). But there is not even a "checklist" to follow to turn your kit into an airplane, such as the other vendors provide. For a first-time builder, that was intimidating, to say the least. I had wrongly assumed there would be more "documentation" with the kit – my fault for assuming it would be there...
That is mitigated somewhat by the existence of the Bearhawk Forums website. There are some truly awesome and helpful people on it, including the owner of the kit factory, who is amazingly helpful in answering questions. There's one guy on the forums who has scratch-built not only a 4-place, but also a Patrol AND an LSA – the latter in about 18 months! Within the forums, there is an ongoing effort to document all of the steps that go into completing the plane, and to document any dependencies on other steps, so you'll know not to proceed beyond that point before doing the 'other' thing. This is in the form of a "mind map" that is accessible to the builder community, and is slowly becoming a truly useful tool. It's crowd-sourced, so subject to all that entails.
In the end, my decision to sell the Patrol kit was not because I became disenchanted with the Patrol as an airplane. I would still LOVE to own one. And it was not because I was having trouble figuring out the build process and getting things accomplished – I did, in fact, have those issues, but the forums helped resolve most of those, and the kit manufacturer's support answered the rest of them. In the end, my build process was brought down by health issues and the desire to be flying while I still could. I don't regret the time I spent on the Patrol, nor the investment of $$, time, and energy. I learned a lot, and most of the time enjoyed the process.
But had I realized how challenging the build would be for me, and how long it was actually going to take (my best guess is close to 3000 hours for the "quick build" kit), I might have chosen to build either a RANS S-20 (the S-21 wasn't available at the time) or a RANS S-7, depending on whether I wanted side-by-side or tandem seating. Given what I now know, I believe I could have completed either of those planes in the 3-years (and over 1250 hours) I spend building the Patrol to the "almost complete fuselage" stage...
Good luck!