It's a tough call, I personally love the innate creepiness of the Tenth Planet originals (The human hands, the sensation that there's SOMETHING like a face under the cloth mask, but probably not much like a face)
The Earthshock era ones never did that much for me.
On the other hand I like the Industrial tech of the new ones, especially the fact they've taken the notion of the sound design, so they actually SOUND like they weigh half a ton, as opposed to the classics who are essentially guys in silver jumpsuits.
Their origin sucked big time (It was the self-inflicted nature of the classics which made them creepy, the new wave are essentially victims of a Bond-villain scheme) but I like the new ones too.