I'll play along. Of the rifles I currently have it would be a .375 H&H M70 or a Sako 300WM Desert Eagle. But if building one I would think about a 9.3x62 in a stainless action. I think a MPI Dakota mannlicher style would be uber cool. I would get the graphite version. Since I am a lefty it would have to be either the M70 action or more likely the Montana with the lightening job done on it. I would have a low power scope no greater than 7x and back up peep site NECG or Tally if they still make them. Barrel length would be 20-21" depending on what the stock would accommodate. Barnes, Nosler, Woodleigh, Raptor and Hammer bullets would all get some consideration. I would go for an all up weight of eight pounds plus or minus a half pound.
My bud's in Alaska mostly carry 338s, 45-70 guide guns and one 444 Marlin. When I was up there I carried a 7RM the only rifle I owned at the time. As far as bear encounters I had plenty but the only close one involved our lodge cook and she discouraged a big blackie from coming into the kitchen cabin again rather well with a twelve inch cast iron skillet. This also helped keep the guides out of the cabin as well. But you would look kinda of silly packing around a skillet while you were moose hunting.
