My palkia egg is level 18. I don't even like palkia. But it's my first legendary so I will treasure him forever.
My Dialga Egg is level 18. I don't know why I'm working on this egg when it wasn't my first, and it's not my favorite, but I like Dialga anyways, and he's just the one I chose.
Just switched to my level 1 Celebi egg. Let's see if I can hatch it before the event ends. If I do and I manage to catch Mewtwo, I'll have all of the legendaries from the first two generations.