Why don't we take our minds off of what annoys us about the characters, and concentrate on their good qualities? For example, "Who is the most creative party member?" Or, "Which character makes you laugh the most?"
@Tay6411 I think he may have earned a bad name in Season 3, when he tried to protect El by lying to her. I personally think defining a person by their mistakes isn't fair, especially when they've consistently proven throughout the show that they have a good heart. But I believe that opinion isn't widely-shared, at least when it comes to Mike.
I didn't like all the times he disrespected Hopper. The man is trying to tell you something and you just sit there and laugh at him! When Hopper "threatened" him in the car I was cheering.