Depends on what you want to spend.
I have a Janome 11543 I paid $60.00 for from Overstock.com, It is a refurbished model to boot!
It works great and I still use it. It works great for quilting heavier quilts and making clothes.
Then I have a Brother SQ9000, I paid $199.00 from Wal Mart.
I love this machine, lots of cute design stitches.
Then I have a Brother PE 770, total cost close to 1K with all its toys. It is strictly an embroidery machine.
You really don't need a high priced model to get great results. I go for function and what I need the machine for than the name brand and its price tag.