.30/06 where your teeth have a planned usage.
9.3, 375 or .458 where the recipients' teeth have planned usage.
The third rifle is for fun.
Coincidentally, I was checking my hunting notes recently and found the two rifles with which I'd taken more big game that any others since 1997 are my Ultra Light Arms Model 24 .30-06 and my CZ 550 9.3x62. Acquired the .30-06 in 1997 and the 9.3x62 in 2001....
In the past few years have been using a custom 6.5 PRC made by Charlie Sisk more than any other rifle, but quit traveling to hunt outside Montana around a decade ago. It has worked fine on the standard Montana "freezer grand slam" of pronghorns, whitetails, mule deer and elk, with the 127-grain Barnes LRX. But would not choose it as a travel rifle for distant destinations--instead taking a .270 Winchester with some sort of monolithic bullet.
