I like most all colors but use very little purple, orange or brown. I went through my stash a few months ago and sorted all of them into colors so I could see what I needed or what I don't need to buy for the rest of my life.
I'm not sure that I should admit this, but I must be the only quilter who doesn't like batiks. I haven't even forced myself to use them, in fact I don't even look at them in my LQS.