Lets see...
BOB would include:
Ammo, cleaning parts, ammo, magazines for said firearms, paracord, zipties, odds and ends, room to attach a sword/machete on the outside, and plenty of room for looted goods and swag . You never know what you're going to find when the SHTF
People:
Depends. People I trust means I'd care about them and could possibly get me ate. People I don't trust means I don't like them and that means I could eat them.
If the zombie apocalypse ever happened, the thing to be worried about are non zombiefied people. Regular people can do desperate and irrational things in time of deep crisis.
Zombies are easy, they don't think, just remove the head or destroy the brain. People are dangerous, they think. That being said, I guess sheeple are kind of like zombies...
I totally agree about the survivors being more dangerous. Zombies are easy :-)
Body armor, and I mean effective Zombie body armor. The one thing that nobody ever has in the movies. Just go to a museum and get some plate armor. Zombies can't bite through metal, assuming we're speaking of the classical zombie. Also a gas mask, I don't want any zombie blood or the like splashing on my face, eyes nose mouth or really even touching me at all. I also thing I'd want to hold up someplace with a deep freeze, so that I can just freeze them as the get close, Zombiecicles don't scare me. It also keep the bio hazard in check. A small group would be good, I don't imagine that I would be able to find many folks I trust, that would limit the group size more than anything. If trust wasn't a factor, I think 15-20 would be good, more than that and food would be a major issue. Even at those numbers it would be hard if you couldn't secure enought good soil.
Beyond that, I can't publicly state my Zombie Plan. They would however be used to generate electricity for me, and possible pump water and other things you can do the carrot on a stick trick with.
Ummmmmm......Have you ever seen "I Am Legend"? Those are not people I want to mess with. They would be considered zombies right?