"Champion" is probably as good a name as "Samson", "Hercules", or "Thor". I'm more worried about trademarks than copyrights. Though many of the characters roaming in my head are similar to some DC or Marvel characters, it shouldn't be too hard to make them unique. My "Champion" may have super strength, speed, and durability, but his origin and personality are VERY different from Superman's. However, like with superpowers, it seems that all the good names are already taken. Keeping away from the well-known names isn't that hard, but DC & Marvel have created thousands of characters, many of whom are obscure. How many good names are there for sorcerors or super-strong types or speedsters? And how many of those names are already taken? [sad] Of course this is academic; the odds of my stuff hitting the "big time" (or even the "small time") are very slim.