I have no experience with the machines you mentioned. My preference is Pfaff and that's just my preference. If I were new, I'd first look at dealers of machines in your area. You want support and classes. My area has Pfaff, Bernina and Babylock only. If I were to purchase, which I'm not and wasn't going to buy Pfaff I'd go Bernina.
Back in the day when Singer joined Pfaff to produce machines for 3rd world countries things slipped and got a bad wrap. Now that Husquvarna has taken over Pfaff a number of years ago the TOL machines are almost identical with the exception to the integrated dual feed which is exclusive to Pfaff. The dual feed makes sewing and piecing precise because of having even feeding rather than having to use a walking foot. I've never owned a walking foot because of the IDF.
If I were new, I'd have to ask myself if this is the only machine I'm going to own what all do I want to do with it? Keep a list and take that list shopping with you. Be assured a dealer is going to try to upsale you.
Now that I have the Creative Icon which does everything and more that I would want I've stopped. Sure Viking just came out with laser which will soon be on Pfaff if not already. What's it going to do that I can't already do? Probably not much.