[Guitar Woman]

My favorite old Whos are probably The Mind Robber, Tomb of the Cybermen, and Genesis of the Daleks. But yeah, I think a lot of the oldies are insufferably dull, mostly because the stories for every serial could be told in about half the time they all take (although to be fair, I've only seen about 6, and most of them were the first and second Doctors so that might be early installment weirdness). It helps if you watch them stoned. Even then, there are a lot of points where I thought, "Goddamn, just get on with it;" The Cybermat deploying scene from Tomb is the first example that springs to my mind, they spend something like ten cocking minutes turning a bunch of robot lobsters on.

New Who is pretty excellent all around, especially after it broke free of the "cable-access production quality" feel that the 9th Doctor's episodes had. Steven Moffat is an insane genius and Karen Gillan is more or less the cutest person on TV.