Depends on the steel. The steeper edge will bite better, but generally have a shorter life. Generally the way you can find out is sharpen it steep and give it a try, a few whacks into something good and stiff, then inspect the edge. If it's holding up and not rolling, you're just fine. If it rolls, just change angles and micro-bevel it until you've got an edge stiff enough to stand up to the use you want it for.