I absolutely love pencil and paper. Art school has been heavily biased to move into 100% digital, and I've had teachers strongly encourage me to work sketch to finish in digital. Although I'm more comfortable with digital now, I must at least do sketches traditionally. It seems my brain just can't wrap around digital, even with a cintiq.
I also find my hand gets extremely sore and cramps when drawing digitally, so I try and do as much traditionally as possible.
All my shorter, experimental comics are fully or mostly traditional. Inks and sometimes washes. There's just an entirely different personality you get from traditional.
The comic I've been posting on Tapastic though is now fully digital. I still do the sketches by hand, and the first chapter (currently being posted) has traditionally inked lineart, but I've since made the transition to digital linework as well (as you can currently see this in the series banner). I just have to be sure to work slowly with digital. That may seem counter-productive but it is for the sake of my drawing hand, which is my life 