L4D 2 Review of the Mobs

Ok, I will now like to know about your opinions, if you think that a tank would fight with a witch, who will win. Now, my guess is a tank. No.1, the witch doesnt find you, you find the witch, you dont find the tank, the tank finds you, no. 2, the tank has 3000 hp, while the witch only has 1000, and the tank deals really heavy damage, so the witch has no hope. However, if the witch pins the tank down, maybe she could win by pulling out the tank's intestines.
I like spitters and boomers, especially boomer's tongue, what about you guys?