What's the best CNC? Not an easy question. It really depends on your needs. You are going to have ask yourself what you want to accomplish with your CNC. For most of us. We're hobbyist and want to create artistic signs and 3D work. This can be done with a vast majority of the hobbyist market machines and your really only limited by the size of your machine. Even so you can always tile as well, so for me it really comes down to how easy can I make this. I really want my machine to be efficient as possible. Turn and burn, popping out carvings as fast as possible with the least effort from me as possible. It's not always that simple though, your CNC machine is only a fifth of what your going to need to get the absolute best results.
Another question to ask is what your budget? What can you actually afford and is it good enough to complete your end goal? CNC is a expensive hobby between the actual wood carving machine and the software. A CNC will only be as good as what you tell it to do and if you don't have the right tools to do that. Well then it really doesn't matter how much money you spend on the actual machine. What is going to make the big difference is the knowledge you obtain to know the limits of a particular machine.
I often relate being a CNC wood carver to a tattoo artist. A highly skilled tattoo artist can take a cheap hand made tattoo machine and make good use of it same as an expensive name brand machine. It's because that artist knows the limitations and the capabilities of what they are holding in their hand.
Another element of that is experience. Often times I will see a meme on Facebook about someone getting a bill for a large amount of money for a 10 minute job or something to that nature. The response when someone complains is something to the effect of you didn't pay me for doing something in 10 minutes you paid me for the 30 years that it took me to learn how to do it in 10 minutes. That's experience, knowing the ins and outs. Being able to fine tune to achieve perfect desired results.
Perhaps the answer to "what's the best CNC machine?", is just subjective to the needs of the operator. Which can change as you gain more experience and decide to upgrade. CNC's with the right operator can be money printers and who knows...maybe you can upgrade sooner than you thought.
So I didn't really answer the question, I know. But can anyone really? Unless you can find someone who's hobby is trying out a bunch of machines after spending hours if not days assembling them. Then the best is going to be subjective to the reviews of the people who have a machine. They are either going to love it or hate it. But beware, many people purchase CNC machines without understanding the learning curve that goes into it. Are they utilizing the software efficiently? Is there machine level and square? Do they have the proper material and correct bit for what they need? If not these users are probably going to have a hard time and could blame the actual machine when they are the culprit of its failures. So just be mindful of that when you are trying to find the CNC that you decide to buy.
Hope this was a tiny bit insightful and helps lead you to make a good decision when you decide to take the plunge into wood CNC machine carving. Good luck to everyone in their endeavors and be sure to ask any questions your curious about.
Additionally, I am going to include some CNC machines that you can find on amazon for cheap with short lead times. I unfortunately am not the most patient and that was part of what influenced my decision to purchase the machine that I did. CNC is a very popular hobby and companies that make these machines often have a hard time keeping up with demand which may leave you waiting 6 to 8 weeks just to get your hands on one. Cheers!