I took man vs self but my stories rarely comes down to one of these. I like to make complex stories and have several layers on top of each other. Depending on how deeply you read my stories, you can find and discuss all the layers.
For example, In Primalcraft: Scourge of the wolf, one of main characters Blake is being targeted by someone unknown, who cast a curse on a wolf to kill him. Man vs Unknown. The unknown is influence by something Blake had done in the past. That incident is in turned caused by a traumatic experience for Blake, man vs Society. And Blake handle it by running away. He never felt like he stopped running. Man vs Self. So, in this book we have a physical enemy, a past one, a dark past, and himself, in the form of fear.