Marvel and DC Comics differ in several ways. Firstly, their universes are structured differently. Marvel has a more complex web of interrelated characters and events. Secondly, the art styles can vary, with Marvel sometimes featuring more dynamic and colorful visuals. Also, the themes explored can be distinct - Marvel might focus more on personal growth and teamwork, while DC might delve deeper into moral and ethical dilemmas.
Well, Marvel and DC Comics have quite a few differences. For one, their characters and storylines often have distinct tones. Marvel tends to be a bit more humorous and light-hearted at times, while DC can be darker and more serious.
Well, it's not straightforward to determine a clear winner. The success of Marvel and DC Comics often fluctuates depending on different comic book runs, movies, and TV shows. Sometimes one might have more popularity at a given time, but it can change over time.