Like many of the characters on LOST, i'm a fan of lists.  Whatever the subject matter i love the debate that lists invariably bring.  I think there's a human element to that, we say that we compromise artistic integrity when we judge art by a distinct hierarchy but it's all ******** in my humble opinion.  And as needless and trifling as it may seem, it makes me happy to get my opinion's scrutinized and deflated.

Just so nobodies confused, I lumped all the two/three part episodes together as one episode for the sake of convenience.  I also offered up a few useless IMO nuggets on a few episodes in parenthetical fashion, the episodes sans commentary are likely episodes that are ranked accordingly, meaning i don't think i've over- or under- rated those eps as grossly as i did the rest .

Also going on an internally levied four star system - even my most hated episodes have enough merit to be better than most television i've watched - each division is where i'd rank each group of episodes, from the first group in the 3.1 to 4.0 star range (Orientation would be the only one i'd give 4 stars to) and the last group which is the 0.1 to 1.0 range (S.O.S being that 0.1) 

So without further ado here's my "running" list, feel free to criticize:

01. Orientation (The episode that hooked me and made me appreciate something "bigger" was at work!)
02. Through the Looking Glass (both parts - Wow! Added more dimension and depth than any previous episode!)
03. Flashes Before Your Eyes (Opened a new avenue of theory. One of the few times i unexpectedly found myself emotional during Lost)
04. Lockdown
05. One of Them (I still have goosebumps when i watch this episode!)
06. The Brig
07. Man of Science, Man of Faith
08. ?
09. Live Together, Die Alone (both parts)
10. The Hunting Party (Loved everything about this episode, even Jacks failed marriage! Especially loved Jack, Locke, & Sawyer all at odds leading to Mr. Tom Friendly's finest hour!)
11. Enter 77 ("Things have clearly moved to the next stage")
12. Catch-22 (Funny, well written, well acted, one of the more solid episodes)
13. Not In Portland
14. Deus Ex Machina (Powerful end)
15. The Other 48 Days (Played like a mini-movie!)
16. Pilot (both parts)
17. The Cost of Living (Would be one of the best if not for the ridiculous Paulo & Nikki scene.)
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18. What Kate Did (Only watchable kate episode)
19. Collision (A good sociological episode :-) )
20. Solitary 
21. Exodus (all 3 parts - I know i'll be crucified for it but the first chapter dragged the following two contiguous parts down)
22. The Long Con (For a non-mythos advancing character episode i really liked this one, loses points because it does seem to come out of nowhere)
23. A Tale of Two Cities
24. Par Avion (Overpraised episode with a couple of great scenes)
25. Raised by Another
26. ...In Translation (liked the language/cultural barrier angle)
27. Two for the Road
28. All the Best Cowboys Have Daddy Issues (Good "instigator" episode that i liked more once i got past the "tape-chase")
29. Dave (Good parody episode, really funny.  Sayid and Ana in the hatch wit Ben was epic)
30. The Glass Ballerina
31. Every Man for Himself (Very solid Sawyer episode that was the first and only time i appreciated one of Kate's relationships)
32. The Man From Tallahasee (Good episode that was backloaded with reveals at the end)
33. Adrift (liked "going back" and seeing the entry from another perspective, the raft exchanges were humorous)
34. Three Minutes
35. The 23rd Psalm
36. Fire + Water  (I liked some of the "behind the scenes" duelling faiths with Locke and Eko.  Loses points for being a Charlie episode, though it exposed Charlie's Co-Dependency.)
37. Tricia Tanaka is Dead
38. Further Instructions (Loved Locke's dream and character development, weak mini-arc though)
39. Stranger In A Strange Land (It's not terribly noteworthy, but i did enjoy this episode more than Joe Public, have highlighted why elsewhere)
40. The Man Behind the Curtain (Illustrious and chilling ending, but some scenes really should have been re-shot and/or left on the editing floor.)
41. Maternity Leave (A lot of cursory issues i have with this episode, Claire annoyed the **** out of me)
42. Outlaws
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43. The Greater Good (Garden-variety aside from Sayid & Locke's interaction, flashback was beautiful but hollow)
44. One of Us (Interesting, but too many aimless plot contrivances congested in this episode made it seem very forced. Inexplicable implant was one of Lost's lowest and campiest moments.)
45. Everybody Hates Hugo (Kind of a downer after Orientation, but i liked Hurley's dilemma)
46. Hearts and Minds (Very well directed episode, Boone and Shannon are just awful though)
47. Numbers (Funny, but tried waaaaaay too hard to be "out there" and didn't succeed in my estimation. A weaker parody ep. because the writers seemed to almost want to believe it wasn't.)
48. Homecoming (Charlie pukes on a copier then shoots Ethan.. not ****** cool)
49. Confidence Man (Sawyer gets tortured for a kiss, funny but silly, and cons himself out of a con- extra silly!)
50. Walkabout (Lot's of boar hunting, talks with Rose, the first Ghost Dad siting, and a funeral.. Oh yeah and there's some bombastic reveal about a wheelchair?  The rest of Locke's flashback is better than the uncomfortably lofty and unintentionally funny reveal)
51. Abandoned (Shannon whines then dies, the latter is the highlight)
52. House of the Rising Sun (Adam & Eve, stones > Bee attack, watch-gate, and caves vs. beach)
53. Left Behind (Not terrible, but one of the more mediocre and unmemorable episodes)
54. Exposé (Again, not terrible, just not a great direction for LOST.  Bonus points for disposing of two cursory characters!)
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55. I Do (Another turgid Kate romp)
56. D.O.C. (Would've been fair but written/filmed/edited in an uncharacteristically sloppy and annoying fashion)
57. The Whole Truth (Another poorly handled episode with a cute little crackerjack map. God I hated the balloon map.)
58. White Rabbit (The scene at the caves at the end was decent, the rest ****** big time.)
59. Born to Run (Bad lead up, i just rewatched it and i again remember little about it)
60. Do No Harm (Boone dies, Aaron's born, Jack regurgitates syrupy verbal diarrhea all over his soon to be wife in this hammy episode)
61. ...And Found (Dirty Foot Brigade is only genuinely interesting scene)
62. Greatest Hits (Soppy and unbearable)
63. Special (Un-BEAR-able! :-) )
64. Tabula Rasa (Made me want to stop watching initially... The "dilemma" was a good direction but the scene came off as funny.  The characters looked uncomfortable in their roles this early)
65. Whatever the Case May Be (TOY PLANE HEIST!?!??!?!?)
66. The Moth (Can it get any worse?)
67. S.O.S. (Evidently it can...)