I currently own a Gamma X-2 and found that while I enjoy stringing, I’m not in love with drop weight system. As such I found I could add a Wise 2086 for around $720 or I found a used Alpha Axis Pro for $400 that appears to be in decent shape.
My question, is a Wise better than a 6 pt mounting system, fixed clamps and a crank on a table stand?
A stringing machine has three separate dimensions that are largely independent of each other: (1) mounting system, (2) clamping system, (3) tensioning system. What choices in each dimension are best or better than others depends on your goals. If you're stringing for others, 6-point mount, fixed clamp, and electronic tensioning may be the required choice in today's environment. If you're stringing for yourself, then economizing is likely a deciding factor.
I used a X-2 for many years to string my rackets, and for 3-4 stringing jobs per month when I was playing a lot it worked fine. Once you get reasonably competent, it's unlikely that for amateurs what stringing machine one uses is going to have noticeable impact one's tennis play. String tension, string type, and racket, yes. Even more so, of course, technique. I only switched to a 6-point Gamma with fixed clamps and Wise 2086 because I wanted to bring down stringing time to around 20 minutes. I was stuck at around 40 minutes on an X-2. I also have a crank style tensioning machine but resultant tension was lower than using either electronic or drop weight although there are ways to compensate.