1. No such thing as a fully fed Galactus, the mofo's always hungry, even after he just ate. Parallax wins.
2. Movie Galactus was a joke, and since i haven't watch the GL movie i can't say much about Parallax. I didn't know Parallax was the main villain. God i hope they didn't use a stupid concept for the movie.
3. Parallax Entity could most likely take over Galactus.
2. Not really sure. Galactus was about to destroy the planet whereas Parallax was just busy absorbing people's essences. Galactus didn't really have any feats, either, but Parallax got injured/startled by stupid shit.
2) Galactus has no feats, haven't seen GL movie (seriously, could they have chosen a worse hero to put in a live-action movie? They chose the guy with the ridiculously difficult to visualize powers with one of the more complicated backstories that needs to be told in full to make much sense of... )
3) Big Hungry G
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"And then there was nothing. A once broken something now void.
And on the first day, Doom spoke... 'Be.'
And then there was life."