The Most Under-rated X-Files Episode Of All Time...
well in my opinion anyway,
Dod Kalm
I think it was an interesting X-File and it's one of those episodes which I can watch from beginning to end, repeatedly. I admit, I teared up a bit at Scully's journal entry towards the end.
In any case, I love this episode and Autumn Tysko's review articulates perfectly what I love about it.