I'm also leaning more towards Finn being force sensitive. Being Force sensitive doesn't mean you are going to become a Jedi. The Force awakening doesn't have to exclusively apply to our pretty little white savior Rey. I think, going forward, we are going to see a lot more force sensitive characters in episodes 8 and 9. Major characters, and supporting characters. I feel this way about Finn, because of Maz's constant urging of Finn to use the lightsaber. When he says he needs a weapon, and Maz says, "You have one," and the looks she gives him imply that she knows more about him than him just being an awol Stormtrooper. She seemed to know that he would be able to use the lightsaber in some capacity. He very well could be just a guy, but I don't think so. He may not be as in tune with the Force as Rey, but Maz reminded us, the audience, that the Force is in all living things, whether you are aware of it or not. I think Finn will manifest more force potential in the next movies.