Obviously an Escalade with a plow blade is the best choice.
My personal choice would be one of these two. Deuce and a half or Uni-Mog.
I lean toward the deuce for it's multi-fuel capability. There are shop-van versions out there, easily accessible and dirt cheap. Winches, plows, you name it there is a mount for it. Plus, the Uni-Mog is a turd on the road. I was really happy when we got rid of ours.
If we go a little smaller I would go with an '80s Suburban swapped to a 4bt Cummins and 5 speed manual. Solid axle 4x4 and basically bullet-proof powertrain. Make a bulkhead behind the second row of seats and use the covered rear area for gear/fuel. I might make one of these anyway, just because I want one.
Chances are the zombies won't have guns so I'm not worried about armor.
Josh-US Army EOD (Bomb Squad)
Plenty of firearms
A couple diesels sitting around.
Lots of learning to be done!!
Lifetime NRA Member