Inspired: Who has the strongest shield power?
Inspired by the Magneto and Invisible Woman thread. Who amongst the following characters can create the most powerful forcefield? For instance, if Class 100 bricks start to pummel the force-field, whose would be the most difficult to break? And, if a Galactus-level being fired a cosmic blast at them, who has the greatest chance of surviving based solely on their shield/force-field/construct?
Magneto
Polaris
Invisible Woman
Jean Grey (not Phoenix)
Green Lantern
Quasar
Dr Doom
*No other powers allowed, only shields/forcefields/shield-type constructs are being used. Not including the Juggernaut as it'd probably trump all the above.