Interestingly enough.. I've discovered that all fabrics from a particular (even well known) manufacturer and/or designer may not be of the same weight/quality. I'm not an expert in fabrics but that's my experience.
I tend to stay with the name brands but have bought plenty of fabric from Hobby Lobby and Joanns as well. For me, the project dictates what fabric (brand, quality, cost) I will use. I've found a purpose for them all
As for solids, I've had consistent success with Kona Solids.
Welcome to the QB!