I also own all three and love them all. But I hunt Africa about every year, so if forced to choose only one, it would be the 9.3x62, as it is legal on DG where I hunt the most, Zambia. Last Nov. I took (2) Hippo, Kudu, Hyena & Warthog with my Ruger African 9.3x62. I was hunting Buffalo with it also but never got one.
My favorite two-rifle battery for Africa is my 404 Jeffery & 9.3x62. YMMV.
