Are you buying locally? If so, buy the dealer… you want one with
good policies, someone who’s helpful AFTER the sale, with a good service tech. That can be more important than the brand/model…
it’s not much fun having the only SooperDooper brand machine for
a couple hundred miles if you can’t get someone to work on it.
FWIW, 95% of my sewing is done with straight stitch, the rest with
blind hem, zigzag and a couple of others. It’s fun to have all the
stitches in the world (I’ve got a bunch that (rarely if ever) get used), but it’s really important to have a machine that produces
a good straight stitch, a decent buttonhole, and just keeps going
and going with little fuss and bother. If you have to choose between
bells and whistles and fewer stitches but a more cooperative machine,
I’d suggest forgetting the bells and whistles.
You might also want to consider a used machine (maybe even with a guarantee)… some of the ones available for not much money now are
still great machines, but were top of the line 5 or 10 or 20 years
ago — still a lot of good sewing in them.
As far as the particular brands you mention… I’ve got my grandmother’s ancient White straightstitch machine… still going strong after 50+ years. On the other hand, I trashed a modern White
after about 18 months of sewing, about 8 years ago. Didn’t hold up
for me. When I was shopping for the White replacement, I didn’t like
the New Homes… just “didn’t fit”… wound up with what’s approximately the Viking Freesia 425, and it’s done well for me.
Try a bunch and see what feels comfortable.