eh you trditional rotting corspe that may or may not be able to infect the living are nto bad. However thes day a lot of zombies tend to act more like some of the quicker creature that are teh dead bodies of peolpe that have some how risen. These "fast zombies" with their high rate of infection as well as increased speed and agility tend to remind me more of the Ghouls or Wights one woudl find in most fantasy games and books theses days.
Still this also allows these same zombies to at time be more then just mindless fleash munchers and in some stories even have character.