I'm a classics guy. I enjoyed 28 days later and the Dawn remake, but to me the Romero zombies are the standard, and their implacable shambling is what's terrifying. It's the "crush" moment towards the end that I find most compelling, maybe due to a bit of agoraphobia on my part...
I think the true question is it the infected living or the raised from the dead. Like in 28 Days Later it was a virus that infected you but those already dead did not rise again. In that case they could be fast. If it is some type of chemical that can reanimate the dead then I would imagine those zombies would be slow. I guess that puts zombies into two categories, Infected (fast) or Living Dead (slow).
Comments
Does it matter what kind of zombie? Are man-made virus zombies faster than their supernatural counterparts?
And which are scarier the masses of undead who can keep pace with you or the masses of undead who are slw and steady?