Lost (FINALLY) returns tonight, and the questions are running thick: What's the deal with Flocke? Who is the man in black? Did Jack reset the timeline so that Oceanic 815 never crashes? What is the smoke monster? There is only one certainty, no matter what happens with the timeline: Jack will annoy the crap out of us. Over these five seasons, Jack's appeal has gone up and down, though he really ratcheted up his exasperating tendencies in the past season. Harnessing the judging powers of Smokey, we tracked Jack's downhill slide from zero (1) to hero (5). Click through for our all-video Shephard slideshow.