For self defense there is no valid reason to use anything but the best available.
That being said, some of the "Old School" rounds are still in that category. 9bple, 125 Grain 357 magnum, 180 Grain Remington JHP 44 Magnum.
I prefer the Gold Dot loadings and someone mentioned "Boutique" and Underwood being expensive. I order my 357 Sig ammo from them and it is less expensive than anywhere else I have found.
My rifle and pistol are tools, I am the weapon.