I would decide based on the dealer. Go with the dealer with the best reputation - for classes and service. That way, if you run into trouble you have someone to turn to.
I had a Viking Lily that I loved, but traded it for a Sapphire, which I didn't - mostly because the dealer didn't support it well. I now have a Bernina, which I enjoy using.
Embroidery doesn't interest me, but if I were looking for a sewing machine for quilting the Janome Horizon would be one that I would look at very closely now. Unfortunately it came out one year too late for me.