Bump, because this really needs to be addressed.
Are zombies fast like 28 days later, or slow like a Romero film.
Would you rather have:
Fast zombies that will die of starvation if not fed (30 days or so)
Slow zombies that will live forever but can be killed like a normal zombie
Slow zombies obviously.
But they could last forever if not killed! At least with the fast zombies you could hole up somewhere for a month or two and be safe after you get out.
Deaths from slow zombies come from being unprepared and not realizing their strength or lack of agility. Deaths from fast zombies are a tossup. Also, "holing up" is just not a viable strategy, as evidenced by the results of those who hide in Malls.