The Kenmore is strong and quiet and it makes decorative stitches with cams.
The 237 makes a beautiful satin stitch but it is not as strong as the Kenmore. It is quiet, but not as smooth sounding.
If I had to choose between the two, I would choose the Kenmore; hands down. It can zig zag and I could live with its satin stitch. I think. I guess I should check it out. Still, sewing on the Kenmore is a much more pleasing experience. I am happy when I am sewing on it.