I have a top-of-the-line Bernina, but when I need to do a lot of FMQ I end up with one of my vintage japanese badged machines- the feed dogs drop, the machines are rock steady under high speeds, and I can buy pre-filled class 15 bobbins or use my own.
I do like the automatic needle up/down setting on my Bernina, and the automatic thread cutter. But I like to use that machine for delicate sewing like lingerie, stretch knits, and clothing. Even the BSR-bernina stitch regulator- can't match one of my japanese 1950's machines or my Singer 201(although the feed dogs don't drop on it).