6. LOST
I think this show was aptly named, not because of the people being stranded on an island, but instead because of how you feel after you watch the finale to this show. Well really I mean the entire last season, but the finale was their chance to finish and tie up whatever plots they left open. For example: All of them. Any of them. The writers for LOST promised real answers and we all presumably expected them to at least tell us a little about what's going on. I think after the finale was finished I had more questions than I did before. Questions that I was positive were never going to be answered. What's with that cave? What's going on with the church? How was Hurley able to keep his weight stranded on an island? We'll never know.