I like Bonnie Blue. Great sale for us. Sorry to see them scale back their business. Hope it works out.
I often get great prices on 19th century types from fatquartershop.com . Their sale section always has some.
Love Stitchin' Heaven.
http://www.stitchinheaven.com/ Nice folks.
I buy from Hancock's of Paducah occasionally. No complaints.
Also fabric.com.