I have similar odd tastes with Skittles. I always need to eat the three citrus flavours together. Always an Orange, Yellow and Green Together, or else I'll never eat the Green ones. I too am not a fan of Purple ones, and will give them away if possible.

However, I discovered recently that I don't really like the Citrus Skittles packs - I really don't like the Mandarin or Grapefruit flavours, so there's now TWO flavours I don't like - and the orange and Mandarin Skittles are exactly the same color! Supreme fail, I think.