I like both types. Variety is cool! Besides they're both fun in their own ways.
Jennacide said:
Fast. 28 Days Later and L4D zombies are far scarier than lumbering brain munchers to me. Why be afraid of what you can outrun?
Thing is the whole "I can outrun them!" doesn't take into account the world isn't a flat open plane where you can see everything coming. You can easily trip (potentially over one of the undead) or otherwise end up in a position where it's just you and a slowly advanced wall of undead and no escape.
Besides, the two types tend to be "balanced." Shamblers are slow, but
nigh-invincible, nothing short of a brain injury killing them. Runners tend to be fast but
fragile, dying to every means of murder a normal human will succumb - which means that unlike with shamblers you need not be a good shot to survive, you merely need to hit.