I don't use the hammer, but I do use the spear and atgeir.

The spear I would say is fun, you can throw it, it works, but I like the atgeir better because of the knockback. Run into a crowd of Fulings, do the heavy attack, they all get damaged and knocked back. I will usually then run away, let them group up again and do the same thing until they are dead. I would classify the atgeir as a top tier weapon for mobbing.