The only color that I know for sure that I hate is chartreuse (isn't that the pukey pea-green?). I like quilts with a variety of shades. An all-pastel quilt bores me and an all dark & dreary one depresses me.
I have just gotten together an assortment of yummy batiks for my next new project. I love the way some batiks look as though someone poured a mixture of paint colors in a container and just slightly stirred and swirled them around a bit.