Well, if I HAD to pick an episode that was my least favorite, I'd have to say Episode 3 from Season 4, "Christopher". This one seemed to take away the momentum that the previous two built (including the awesome second episode "No Show"), and kinda sidetracked the season a little bit.

It DID have its merits and was entertaining as always, but this episode is certainly not one of the best of "The Sopranos".