This will open a can of worms no doubt, everyone has their own opinions.
It's like what car is better Ford or Chevy. (Dodge)
Basically it comes down to money.
Lowest on the cost would be a Sieg X2 (approx $500) it will need a little adjusting of the gibs to get .001 tolerance
but you can get an R8 spindle (bridgeport standard tooling) but it has the smallest work area (about 9x4)
next is the Taig (approx $815) good tolerance .001 out of the box, small tooling capacity (ER 16),
medium work capacity (12x6 model 2019)
Third is the Sieg X3 ( approx $1200 super X3) good tolerance .001 , R8 spindle,
largest work area (21x6 super X3)
The more you spend, the bigger tooling you can run and the bigger work area to use.
If there was a company that combined the Taig fit and finish and the X3's capacity for around $1000 or so, they would sell like hotcakes.