My DH has that problem - each machine he cleans up and tests becomes his current favorite. However the 401 he is now in love with is not his to keep, so he's back to loving his 201 the best. My favorite is my Viking 990, been sewing on that one for over 30 years and until it sews no more, that isn't going to change. It actually does sew better than any of the other machines (all 50 of them) DH and I own.