IN GENERAL ---- It seems like the calicos, blenders, civil war repos, 30's repos, americana and victorian fabrics appeal to quiltmakers.
The bright large florals and geometics appeal to crafter's that make aprons, purses, tote bags, checkbook covers, eyeglass cases, etc....
Of course this is not a set in stone rule - just something I've noticed by surfing the web and looking at a ton of blogs.