Who are the big 3 heroes that define the marvel universe. With Siege coming up it more or less shows who they are. They were major players in a bunch of the events, Civil War and Secret War. THOR, Iron Man,and Captain America. However, since DC and Marvel are different companies, their hero persona's are vastly different. For Marvel the trinity is Thor- Otherworldly, Iron Man- Technology, and Captain America- humanity. And well that's all i got for you now...Just an interesting thought that came into my head recently.lol...til my next article. Does anyone else think the persona's are correct or should they be different, let me know?