I have three machines (Kenmore, Janome, Brother) and they all seem to do just fine, with whatever I feed them. I now use mainly Mettler and C&C. Like CajunQuilter2 said, the C&C is much better than it used to be (I've sewn, for over 50 years). I use the same thread, on both top and bobbin.
Keep thinking I'll try the Superior thread but just haven't gotten around to it.