I've always liked DC more than Marvel, but with this new comic book movie generation, Marvel is definately more popular. With this in mind, I have made it a life mission of mine to inform others of the fantastic DC heroes that they haven't heard of, like Firestorm.
Firestorm: The Nuclear Man has been around for decades, but seems to get cancelled every once in a while due to lack of interest. My best guess as to why is that politics play too central of a role in the Firestorm story. Being a Nuclear Man, Firestorm is an advocate for demilitarization, using his pull in the Justice League to pressure other countries into disposing of their nuclear arsenals. I remember this arc particularly well, because a Russian superhero by the name of Mikhail Arkadin comes to confront Firestorm, and fuses into him instead.
You see, Firestorm's powers are truly unique. Every Firestorm, (there have been a few) is composed of two people in a single body. The original duo was Ronnie Raymond and Marc Stein, a college student and his professor, one controlling the body, one controlling the mind. This gets interesting, especially in times of crisis, because you have two minds arguing and debating decisions. What results is a character more rooted in justice and fairness than the rest of the League (Supes is the exception of course). When a grey shaded moral decision comes up, you have two smart, good people talking it over, not letting the other do something they would regret. Now, when the Russian Nuclear Man accidentally fuses with the American Firestorm, then shit went crazy.
I encourage everyone who visits comic book shops to pick up a Firestorm trade. I haven't even covered what happened to the Firestorm character in Infinite Crisis, Identity Crisis, WW3, or the Black Lanterns. You have to find out how Ronnie died, how Jason became the new Firestorm, who Firehawk is, and just how much a man made of nukes can contribute to getting rid of nukes. Firestorm is an amazing hero, and one of my faves.