Welcome to the board! You're going to have as many differing opinions as you have responses from folks with tons of experience and talent on here. But it really boils down to what your needs are and then what feels the best for you.
I happen to have the Juki TL 2200 (just the same for FMQ as the 2010) and I also have the Janome 8900 that I picked up used for a fabulous price. I need/use both for different reasons. I prefer the Juki for FMQ because it's such a sturdy machine but the Janome works fine too. I need/use the Janome for all of the other stitches it offers which is why I decided that I needed to have two machines.
I did test the 9400 when I was considering the used 8900 and I think it's a superior machine but not enough for the $2,000 cost difference over the gently used 8900 I picked-up.
No right or wrong choice it just all depends on your budget and needs. Both will FMQ beautifully for you.
For just FMQ I would take my Juki over either Janome.
Good Luck!
Christine
Last edited by TheMerkleFamily; 09-15-2018 at 06:24 AM.