For a long time, I wouldn't carry anything except Speer Gold Dot 124 gr, standard pressure. I used that load once in a small 9mm to kill an active but crippled deer on the side of the road, and it was instantly, impressively effective. So I carried that in any 9mm I had.
Still have half of my magazines loaded with it. The other half are loaded with 147 gr HP WWB. That works well, too, and is a lot easier to get my hands on.