I think I would have a GW with me as the sheath has a clip on it so it would load fast, as for breaking a door, unless I had an ax in my hand I feel that I would just be in the way so I wouldn't even go there. But if there was no one that had a better tool I guess the biggest thing available would be in order. Heavy Heart all the way, just gotta get one first.
(I understand that there are bigger blades that the HH, it's just that it's the biggest one that I plan on owning)