I really enjoyed Earth X. It brought me back into comics after i thought I had to give them up. Alex Ross's character designs in Wizard, of Colossus and Captain Britain, were so awesome I had to buy it.
I loved the story, even the later Universe X and Paradise X. But after all those comics I was upset that Marvel cut the ending short. It seemed rushed at the end of Paradise X. the Best was Earth X though.
Loved it. Loved the designs and the stories around the characters (except maybe Logan's).
Heavy Spoilers below:
Reed Richards had killed Galactus, sort of, turned him into a star.
But the Universe needed Galactus to keep the Celestial population from growing too big, like a circle of life thing. Celestials planted Celestial eggs in planets, which I guess caused life or super powers or something, and Galactus would eat some to keep their numbers low... I guess.
Franklin Richards was born with the power to manipulate reality. So he turned himself into Galactus to save the day.
Just like that. Don't remember why he had to belive he was Galactus, maybe so that he wouldn't be tied to Earth.
I haven't read this in a while, but I think thats the whole thing about Franklin/Galactus right?