If you had the luxury of taking 3 Doubles to Africa to roam about hunting the game of your fancy---

Which calibers would you take?
What specifications, weight, scope,no scope,etc would you wish for these rifles?

Would you want to swap one of the double rifles for a Drilling?

9.3 x 74?, smaller?
450/400?
470NE?
500 NE?

What would be the best choices?