The Whelen or the 9.3x62. I voted for the 9.3 for the bullet weight for the big bears, but these two are so close and the Whelen with the 225 grainers is better for everything smaller. If these grand old rounds are not flat enough for you you are not getting close enough.

You did not give the .350RM a spot, which would get my vote if on the ballot. An intermediate or short action just allows a more toteable rifle. Fitting any of the others into about six pounds is just not practical.