Ok so you guys think Magneto alone cant defeat Galactus. So how about Onslaught who was looking to take over the world? Well I think Magneto stood a great chance since he can form a force field but now theres no way Galactus would win this one. Especiolly with Apocalypse.
__________________ Benighted.
Inhaling the pale waning moonlight that crept
Through the crypt of Her Lord who so lucidly slept
Benighted.
Exhaling the wail of black widowhood's toll
Waxing eternal night entered Her soul
Galactus was defeated by his own equipment in the Galactus mini-series a bit back. It was the Surfer who turned Galactus' own technology on him...
Galactus can be repulsed with a bit of effort (the character is portrayed as unwilling to fight for his food), as has been shown time and again. Back in the old days, Galactus was "hurt" by Thors hammer, however the not-so recently upgraded Galactus (where he was upgraded from an alien with cosmic-diabetes to a force of nature) would eat Asgard and poop it out as an asteroid.
Onslaught would get fried, however Apocolypse is intereting because he's somewhat Thanos-like. In the Hulk issue where he makes Hulk 'War', he uses Celestial technology. He boasted that he was even more powerful than they, however he very well could have been full of it.
I dunno what Apoc's deal is...rumor has it that Marvel is in the process of upgrading him to a 'force of nature' kinda thing too. Probably to give the X-fanboys a Galactus of their own ;-)
Onslaught is nothing but energy in a shell for Galactus to consume. Apocalypse's knowledge of Celestial tech only scratches the surface, he's still an earthling afterall - not the smartest still. Apocalypse is a field mouse to Galactus.
Galactus would win this one. Apocalypse is a nonfactor.
Onslaught's half Charles Xavier had little effect with Galactus when he tried to reason with him not to destroy the Skrull world, and the Magneto abilities would not be enough to do any good either.