Up until now I have bought 22 polishes, I have't worn all of them just yet however from the ones I have worn I really do like Danglefoot The First Avenger. Blue to purple duochrome.
I'm not usually one to wear neon polishes, however earlier this year I did buy Orly Glowstick which is the perfect highlighter neon yellow. I didn't have to wear a white polish underneath to make it pop either which is something I appreciate.