From the list, I would choose a nice boat.
- you live on the water, giving you a great line of sight to any incoming threats (in fact, some breeds of zombies could not swim (infected need to breathe, so they would drown)).
- you can fish, thereby having a renewable resource for food.
- With many docks containing freighters and tankers, supplies can be rounded up fairly quickly when you need to stop in a port.
- You can venture to a different continent, if the outbreak has been quarentined to a certain region.