All the newer machines seem to be popular so do your homework and list what you want a machine to do.
I need a machine with a large throat, needle down, etc.
I have a cheap work horse machine for backup when my more expensive computerized machine is in for serviceing.
I have a Viking and it is a great machine, just wish I had bought the more expensive one with embroidery in it.
Bernina seems to be the winner but is so much more expensive than others just because it has a stitch regulator. Everyone wants that.