I am always looking out for a holographic polish when I go out in search of polishes! I usually try not to buy polish unless it's on some form of sale, though, since it can get expensive quick! I love glittery polishes, but creme polishes can look very pretty too, and a couple of my favorite polishes are cremes! I prefer glitter, though :) Not a big fan of dark colors, usually, like brown/black/blue, but I do love purple, just not too dark that it looks black!
I created a wishlist spreadsheet which you can see HERE!