I think I will trim down on the weapons and rebalance them a bit anyway. There is no big difference in short sword, long sword and scimitar. I also cant imagine a dwarven smith making a scimitar. Too eastern/oriental. I cant see a difference in pike and spear usage/skill, why are there two skills for this ? The same for mace and hammer. Swinging a hammer or a mace shouldnt make a differnce, so I dont know why there are two skills here. I see an unused "lasher" skill, since no dwarven weapons have this... and I know that no one would ever create "large daggers" if you can just make a great axe in the same forge, so the knife-skill is mostly unused. All in all, there is much room for improvement.
Example:
Merge Spear and Pike into one skill: Speardwarf
Merge Hammer and Mace into one skill: Hammerdwarf
Add a new weapon that uses lasher skill. Bullwhips and razorwhips ? (cant simulate range)
Add a new weapon that uses knife skill. Better throwing knifes ?
Delete scimitar
Merge short and long sword into sword
Rename pike skill into... "halberddwarf" ? (for pole-axes and similar items)
Rename mace skill into... "Morningstart-dwarf ? (stupid I know, but for swinging weapons and flails)
What I would love to see is the throwing-javelin tactic used by roman legionaires. They had 2 spears with them, a shield and a sword. They stand, throw the first spear, throw the second spear, then charge into melee. This would be awesome for DF. You melee squad would hurt/slow down the enemies before the actual melee begins.
I think that's probably for the best, and i'd like to give you my 2 cents on this:
As it's actual use is the same, i agree that the spear + pike merge is nice, the mace + hammer is also reasonable, but should get another name, like blunt weapons skill or whatever (Blunt Weaponmaster =P). About the lasher skill, i don't know, whips are just not dwarvenly enough maybe something like chained blades or hooks would seem more appropriate, even weighted chains would be nice.
Knife skills should be used for bayonettes and last resort weapons, using the roman leggionaire theme, they used the pugio when they lost their weapon or it broke for some reason (let's not forget that weapon durability will come in the future, so it'll keep reasonable).
About swords, i think there's no doubt, there should be only the dwarven sword, because they had no reason to use long swords while fighting in tunnels or close combat.
Nice addition the pole versions of weaponry, maybe name the skill as polearms skill, being able to get a polehammer, poleaxe, halberd, etc. for flavour.
I loved the idea of adding flails, i think they are underrated weapons that excelled at medieval times, in a one on one combat, a masterful strike with a flail could surpass any armory and would break bones through shields. Since the flail was what lead to morning-star and other segmented weaponry that consisted in shaft connected by chain to something heavy (from a metal ball to spiked bars), you should name it flail skill.
About the leggionaire javelin + melee combo, giving the usual dorf intellect, it'd waste the javelins on passing birds and other critters not intended, so, until the AI is improved, i don't think it would be viable, since dorfs would just run after the tossing to get more ammo if the enemies didn't get close enough =P
About runic weaponry and armor plates, i think it should be simplified, making plate armors without making the armor plates separately. The runic weaponry, i didn't get it, tried to use but seen no improvement, so i gave up. Is there any difference between gold and silver runes?
That's all i can think right now