I'd probably go with the OMIO x8, just because of it's size. But it's not a mill,so you are somewhat comparing apples and oranges. The Taig will probably let you take deeper cuts, and maybe give a better finish. But the OMIO should let you run faster, taking lighter cuts, which levels the field some what.
Since the OMIO has a high speed spindle, you can cut wood and plastics at much higher speeds than you could on a Taig.
No, it won't give you any more accuracy.Is the closed loop going to give me a lot more accuracy?
You definitely want to use 240V with the OMIO. Those 2.2Kw spindles do not run as well on 120V.Will both of these machines run on 110VAC? I know the omio has an option for 220VAC -- is there any point in having a 220v plug installed to run it at a higher voltage?