I've been gone for about...14 hours, so I will answer some of these questions.
In my mind, the zombie virus would be transmitted by blood to blood contact. So, if a zombie's mouth is full of blood, and bits through your skin, you're screwed. I suggest giving it some Orbit mints and ensuring their dirty mouth is no longer.
Also, because I am a Cloverfield nerd, lets throw Clover into the mix. I'm not so sure he isn't a zombie as is. I mean, he gets pounded by missiles throughout the entire movie, and if you're a real Cloverfield nerd, you'd know that the monster's still alive after the ending, big boom.
If you put Clover into the equation, ZKK will get its head bitten off within 3 seconds. Then ZC and ZG would fight it out for eternity. Because i don't think either would be able to kill each other. It all depends on whether or not ZG still has his Nuclear Breath. If not, then ZC would probably win because he could fit ZG's head into it's mouth about 3 times over.
Woo...This thread is officially completely off-topic from where it originally was...in the off-topic section...Congrats people...