I love my 201 and use her the most. The FW travels well and so does the 301 but for just sitting and sewing a top together and DGD dresses, I use the 1941 15. Just something about the way she sounds.
I have a Viking Husquvarna for denim and anything heavier. She has an industrial motor.
The bobbin case for the 15-91 is on its way so we'll see where she fits in this menagerie. It I find a plate for the Viscount she'll be used for quilting and the New Home 556 needs new brushes, also on the way. If there was space I'd have one of those 1970s models set up for bobbin winding.
What was the question?