I don't know why but I only use blades that can be thrusted and slashed purely for the diversity of attacks it allows me.
I love the idea of lances and the way they work in this game and I often start the battle with one drawn just to take my first opponent then I pull out a balanced sword of war to finish the enemy.
So they are the weapons I do use and I pretty much won't use anything else because they just don't appeal to my fighting style.
Blunt weapons just don't have a high enough damage output, pikes, spears other polearms just seem like defensive rather than offensive weapons. Scythes, and other small weaponry isn't worth mentioning considering its something the local peasantry has grabbed from the field.
However most weapons I find have a great sense of realism in this game. I still want to see a good noise for lance punches though!