When the .357 came out in 1935 it was because of an attempt to give police more penetration power against the dense steel cars backin the 1930s. However, the vast majority of policemen chose to stick with their trusty .38 special revolvers because they were lighter and easier to handle and sufficient for their average needs.
BUT, the dispite it's failure to take in the law enforcement field, Big Game Hunters from the jungles of Africa hunting lions to the Ice of the Arctic circle hunting seals loved the .357 Magnum Smith & Wesson. If it's good enough for them, why shouldn't it be good enough for you.
If you love Dirty Harry movies and would like to hold the gun saying "make my day." Then get a .44 Magnum
You decide. Nobody can really pick your gun for you anymore than they can pick what car you drive, but both of these two calibers will do for hunting.