I chose Shaymin, but generally like them all. Mew was one of my favourite pokemon when we had only two generations, and it's also the only event pokemon I've ever owned. (I don't have it anymore, I had it in my Yellow but the internal battery died.) Jirachi is just really cute with its ability to make wishes come true and all. :3 Shaymin looks adorable in both Formes, ans I just love hedgehogs. ^^ Celebi is nice, but not anything that special to me.