Obviously, any magic abilities will be removed, and robots/people with metal limbs get that advantage nulled.
So, all things being equal, who do you want alongside you as you try to survive zombies? No one from Highschool of the Dead is allowed, for obvious reasons.
Revy (Black Lagoon- Put a gun in her hand, she is unstoppable)
Rock (Black Lagoon- can keep everyone together, has an amazing general knowledge and can use it, AND he keeps Revy sane-ish.)
Lelouch (Code Geass- Even without his Geass, he can plan brilliant plans for taking out Them )
Black Jack (Black Jack- If anyone can treat a zombie bite, it's either him or Franken Fran, and I wouldn't trust her with a plaster.)
Hiruma Kenshin (Rurouni Kenshin- Non-killing oath doesn't count on Them)
Onizuka (GTO- Look after everyone, break in survivors, pull of something insane when we're all gonna die)
I considered adding Yotsuba, from Yostuba&!, as with her around, there's no chance of any of us commiting suicide out of dispair, but then I realised that EVERYONE would do that when she ran off on her own and...
Other runner-ups for my team included Kei Kurono, Suzaku Kururugi, Yoko Littner, Shinji Ikari, Simon the Digger...
But that's just me. Of course, this is just your main Nakama, you'll recruit more survivors as you go along. Limit is seven people for you main starting team INCLUDING yourself.
So, how about you? Who do you want on your team? Like I said, main cast of HotD is disallowed as they already do this for a living.