Mark Sloan is my second favorite male character on Grey's Anatomy because Eric is my second favorite actor not to mention that he is hot and sexy. I love Grey's Anatomy mainly because of Mark played by Eric Dane and Addison played by Kate Walsh. Even when Mark is played by Eric as a manwhore, I still love him. Eric has amazing chemistry with Addison played by Kate Walsh. If and when Eric does leave the show, Mark will always be my second favorite male character. Mark has been so great over the past four seasons because Eric Dane has does an amazing job. I cried when he told Addison that Derek didn't love her and instead loves Meredith and Eric played that scene well. I think it's one of my favorite scenes that Eric has done as Mark over the years. Mark Sloan is and will always be my second favorite male character on Grey's Anatomy just like Eric Dane is and will always be my second favorite actor on Grey's Anatomy.