Your best bet is to try several brands and make your own decisions about what you yourself considers "best". A lot of the time it will depend on the project, the other fabrics you're using in that project, and the color availability.
Kaufman Kona Solids, Moda Bella Solids, Marcus Centennial Solids, Northcott Colorworks Solids, Clothworks American Made Brand Solids, Benartex Bali Basic Solids, and other quality solids are flooding the stores now that the Modern Quilting trend has established itself. You can't judge by someone else's opinion.