There are several ways you could improve the blunt weapon category really majorly
in the description of the war hammer it says that dwarves use it as a secondary choice to the axe, give dwarves a special bonus to it maybe? make it to where the epic blunt weapons have increased dmg die, i mean they hardly ever crit compared to ESOS but if the dmg dice were a little higher then that may cover the lack in crits.... atm its hardly even a niche weapon, ppl use them on skellies and liches but ppl would rather use their pos2 weapons more, i know that people will look for effects just to destroy undead so they don't have to use a blunt weapon ever in the game and it is just ultimately... sad
the only blunt weapon i ever see being used is the handwraps and sometimes the staff by acrobats, maybe take some time and give blunt users a new weapon type, an exotic one perhaps? they have no exotic blunt weapons in the game atm yet there are 4 ranged types and a bunch of slashing types (dorf axe Bsword khopesh kama) throw the blunt users a bone and try to balance the playing field so its not just GRAB SLASH AND GO!!!!1!1!!!!1