Re: Why do pudge players always build a hood?
It lets you farm incredibly easy and fast with rot, and if you stack a camp here and there when you pass through, you can get alot of additional gold this way. It's also important to kill off lanes quickly with pudge, so you can get back into fog of war, and preferably not lose half your life doing so.
I don't build Hood on him unless there's at least 3-4 heroes in the enemy team with heavy magic damage, but that seems to occur alot, perhaps because I like picking Pudge against squishy casters.
Pudge is also a hero who gets stronger (through Flesh Heap) as the game goes on, meaning he will have quite a health pool. And since Magic Resistance, much like armor, makes every health point better, Hood has great synergy here.
So yeah. I'm keeping my Hood.