All December long, I will be doing daily installments of Comic Theme Time. Comic Theme Time is a twist on the idea of a "Top Five" list. Instead of me stating a topic and then listing my top five choices in that topic, I'm giving you the topic and letting you go wild with examples that you think fit the theme.

Today's topic ties in with an article I wrote for Comic Book Resources' front page about the history of the Avengers and the X-Men's shared stories. You can read it here. So the topic is "What is the best Avengers/X-Men story?"