I'm going to echo Demdike's sentiments somewhat, and say that the first 4 seasons were pretty rock-solid and represented some of the best TV ever made, in my opinion.
Things took a rapid downhill slide after that, and aside from the odd few decent episodes here and there, the bulk of the series was just filler to me. The introduction of Doggett was the beginning of the end in my eyes.
The final season in particular was all over the place, and the finale so rushed and cobbled together, I was actually embarrassed for Chris Carter. That said, I love the show and nothing that has been produced since has come close to the enjoyment I used to get from watching the X-Files on TV when I was 11/12.
Me and my friends used to watch it religiously every week, and discuss Gillian Anderson's attributes at great length.
I actually own all the seasons on DVD and usually go through the series from start to finish every year. I find the last couple a bit of a chore though!
As for the comment that
The X-Files is better than
Twin Peaks: BLASPHEMY!
By the way,
The X-Files geek in me likes your
D.P.O. sig, dog.