It also depends what your pot is like and how you plan to use it.
Most of the dispensary pot I get is dry and crumbly. Easy to crumble with fingers and a grinder can turn it into dust. In this case, I like fingers better than grinders.
However, my home grown is nice and moist after it's cured properly and it doesn't crumble. If you smoke in a pipe, you can break off pieces just fine. Again, however.... if you roll joints, you need a more consistent blend so a grinder works better than fingers for this pot and this application.
I drink beer, red wine and white wine..... none of them in the same style glass or at the same temperature.
Enjoy variety. It is the spice of life.