Well, if Thor could hold off Juggernaut for a little while, Wonderman theoretically could probaly handle Magneto. After Magneto is dispatched which won't be easy, c'mon he's Magneto, he's like one of the most powerful mutants in the world. Wonderman and Thor could double team Juggs, and hopefully pull out a victory. On the other hand Juggs at full strength and momentum could probaly crush Thor and Wonderman. But i'll have to say Thor and Wonderman as the winners.
Depends on whether its Thor with the Odinpower or not. If so id go for team Thor. Otherwise id say Magnetos team. In a crossover Jug has fought wonderwoman and won. He is virtually unstoppable. Normal Thor cant really do that much damage to him either. If you check out their confrontation in Avengers i think it was the mini Templars saga thing then Jugg took him out. Magneto is just about the most powerful mutant on the planet having defeated the Xmen and Avengers teams(not together) singlehandedly with Thor present and getting thrashed. You can see this in that mini comic series where Magneto is after a machine that can restore his powers tothere full original state. At the time where he thrashes the avengers he is linked with Polaris and is just tapping into her powers which operate at considerably lower energy levels. Team Magneto all the way!!!!!! Unless its OP Thor that is lol
Ionic energy can be converted in magnetism. Basic physics if u don't believe me then remember your physics class about the theory of COnservation of Mass and Matter as well as the famous little formula E=mc2. Matter and mass are interchangeable and matter is never lost and can be converted to all types of energy whether heat, electircal or nuclear. Mags can use ionic energy to convert into magnetism.
this is all from here
http://www.fortunecity.com/athena/power/955/WBIO1g.htm
While it appears Wonder Man transforms from a normal human being into being composed purely of ionic energy, this is not the case. Wonder Man's physical body is merely covered by ionic energy at that point. It is unknown if this outer covering of ionic energy adds more protection to his already near-invulnerable form or if it is just a by-product of his resurrection by the Scarlet Witch.
Wonder Man also taps his ionic energies to enhance the speed of any of his physical action, giving him a practical reaction time hundreds of times faster than an ordinary human being's.
Despite these his various powers, Wonder Man can still be hurt or rendered unconscious by a sufficiently powerful force. Wonder Man still possesses nerve endings that allow him to feel pain to a certain degree. Because of the ionic energy in his body, Wonder Man no longer physically ages and is functionally immortal.