Zombies on crack in ‘World War Z’ trailer

I'll be frank. My knowledge of the zombie oeuvre is pretty limited. I'm not a zombie expert.

Don't get me wrong, I love zombie flicks and I dig The Walking Dead, but I haven't watched every George Romero a hundred times. Only maybe like 10 times each.

Apparently, there's a whole site (http://zombie.wikia.com/wiki/Types_of_Zombies) dedicated to the different zombie types, but if I had to choose, I prefer the old school lumbering brain-eaters....