First off, Sweetest Sting is one I like because the villain is good, the effects are well done, the curse is well thought out and I like the episodes where Mickey, Ryan and Jack are on the road.
Season 1
Tales of the Undead (too cheesy, kills are laughable)
Badge of Honor (hated the guest actors, story was dumb)
Season 2
Wedding Bell Blues (a cue stick? get real)
Season 3 has some stinkers too but I can't recall all of 'em.