Picking just one? That's truly a tough one! I'll provide tu with a "Top ten" in no particular order off the parte superior, arriba of my head! Obviously everyone's opinion differs, but these are my parte superior, arriba 10 whether its for the "scare factor", the Scully & Mulder moments, the humour o the complexity.
1) Bad Blood "Begin autopsy on white male, age sixty, who is arguably having a worse time in Texas than I am, though not por much. I'll begin with the Y-incision"
2) Jose Chung's From Outer el espacio "Have tu ever flown a flying saucer? Afterwards sex seems trite."
3) Paper Hearts "A dream is an answer to a pregunta we haven't learned how to ask."
4) Ice "Before anyone passes judgment, may I remind you, we are in the Arctic"
5) X-cops "This can't be live television, she just dicho *BLEEP*"
6) Triangle "Scully I amor you"..."Oh Brother"
7) Post Modern Promethius "I am alarmed that tu would reduce these people to a cultural stereotype. Not everybody's dream is to get on Jerry Springer."
8) How the Ghosts estola Christmas "The dark gótico manor, the omnipresent low fog hugging the thicket of overgrowth... Wait. Is that a hound I hear baying out on the moors?"
9) Anasazi "In the desert, things find a way to survive. Secrets are like this too. They push their way up through the sands of deception so men can know them."
10) Home "Well, aside from the need for corrective lenses and a tendency to be abducted por extraterrestrials involved in an international governmental conspiracy, the Mulder family passes genetic muster."
I couldn't just pick one. I really liked 'Small potatoes', it was a weird episode but it made me laugh. There are others that I liked to but I'm not sure what they were called.
I have two and I never can choose between them. It's '3' (yes, I actually enjoy Mulder getting it on with the vampire chick) and 'Drive' for the scenes in the car with Mulder and Mr Crump :D