User blog comment:Lasifer/The Minecraft Mobs vs The Left 4 Dead Infected/@comment-26074921-20120317215534

All right here goes.

Grunt: The Left4Dead infected are far more agile and while the Minecraft zombies can take more punishment the infected are far more numerous. They also are more vicious and brutal in their attacks. Edge: Infected

Ranged: Hmm, I don't believe that arrows will have too much of an effect on the hordes of the infected, however I don't believe the smoker's attacks would be that effective against the mobs save for the zombie. The Skeleton can at least hinder the opposing forces if not incapacitate some of them. Edge: mobs

The trap: The ghast has the obvious advantage of it's floating abilities and ranged explosive fire attacks which could present a serious hurdle to the infected. Not to mention the ghast tends to float above the battle field. When compared to the ghast, the spitter might as well be a common infected, though it may cause significant damage to the other mobs. Edge: mobs

The provoked: The endermen's teleportation is only a minor inconvenience for the infected and though they attack angrily it compares nothing to the attacks of the witch, The mobs will not think twice about attacking the witch who then will not cease to tear through their ranks. Edge: infected.

The suicider : The Creeper's explosion will  probably be one of the strongest attacks in the whole battle. The boomer really relies on the attacks of the other zombies to really be effective and in the scenario of a large battle doesn't really help much. The creeper however will be able to take out multiple infected. Edge: mobs         (p.s. I hate those bastards)

The Crawler: The hunter will be able to take out multiple mobs over the course of a short time period. However the spider's ability to incapacitate it's victims in webs will stop many of the common infected and as a giant spider it's arthropod shell (at that size) would provide substantial protection. Edge: mobs

The Strongman: The tank easily takes this. The rage and strength will allow the tank to stay in battle for prolonged periods of time while the slime will probably succumb to the countless attacks from either the infected or the tanks themselves. Their ability to split into smaller pieces is limited and rather unhelpful  in this specific fight. Edge: infected

The Mobs are deadlier in a straight battle.