After shooting all 3 bullet designs, the Barnes Tripple shock is the one to beat.
I shot 2 bears in British Columbia last month. One was taken with a shoulder shot from my .06 using the 168 Tipped Triple Shock. Stuffed this bullet over a max charge of Reloder 19. Shot wasn't far, but I couldn't see any remarkable difference in its performance v. the 180 Accubond, which was used to kill the other bear, also a shoulder shot.
One bullet you didn't mention is the new Nosler E-tip. I have a batch of those that I also plan to play with in my 270 Allen Mag.