Solar: Man of the Atom vs Magneto
READ THIS DATA BEFORE CASTING YOUR VOTE IF YOU ARE UNFAMILIAR WITH SOLAR!!!
Characteristic of its time, the Valiant/Acclaim version was more serious and had lots more depth. The new Solar — the "Doctor" part was dropped — was physicist Phil Seleski. He had the nuclear accident, got the awesome powers, etc., but in this version, he became fanatically anti-nuke and went on a rampage of destroying nuclear power plants. Armed troops tried to stop him, and things escalated. It ended up with the entire human race falling into a black hole, which, as luck would have it, tossed Solar far enough back in time to where he had a chance to prevent the whole thing. The Gold Key version of the character was there too, at least in the beginning, as a shock-spawned hallucination given life by Solar's energy powers. (Oh, those '90s superheroes!)
Source: http://www.toonopedia.com/docsolar.htm
When industrial sabotage causes an experiment in atomic energy to go awry, nuclear physicist Doctor Phillip Solar is transformed into a living atomic reactor! Now Doctor Solar uses his miraculous energy-based powers to protect the innocent and to thwart the diabolical machinations of the mysterious archcriminal known only as Nuro. The original incarnation of the classic hero Doctor Solar, Man of the Atom springs to life in this newly remastered collection of classic stories from comics visionaries Bob Fujitani, Frank Bolle, and Paul S. Newman. Reprinted for the first time in nearly forty years, these adventures of Doctor Solar are truly wonders of the atomic age