Blue, it was my first, and I chose it over red because of the colour! (I dont really likered)

I liked Yellow, didnt realy like Gold, got Silver and liked it way better, got Crystal, meh, got Sapphire a lot later and was relatively dissapoinyed, got Leaf Green, which annoyed me due to the fact that it remained in Ruby/Sapphire format, thus killing the originals, then got Emerald, which was alright, but some SOB stole it..

The original series will always be the best in my eyes