Currently, it seems that when a piece of equipment becomes available (armor, weapon, bolts), the first available dwarf that is allowed to equip it will run over and grab it. This works well enough if you just churned out a batch of mundane iron chain and just want all the recruits to throw it on and get back to wrestling, but perhaps I'd prefer that the masterpiece plate mail is given to my most senior soldier rather than whoever happens to decide to come pick it up. The strongest, most well-crafted armors are not terribly common and so it would be appreciated if there was a way to ensure it was protecting the investment in the best-trained dwarves in an easier way than there is currently.
It seems like it would make sense for items of armor or weapons to have the [a]ssign option on them just like rooms do. Then you could designate a dwarf to own that equipment, who would then be the only one allowed to pick it up and equip it, if they had the equipment's type enabled in the [w]eapons submenu. This would guarantee that your legendary hammerdwarf gets the mastercraft adamantium platemail menacing with spikes of carp bone and studded with platinum... and not the inept newly-recruited wrestler who's just recovered from the injury he got when he managed to put himself in a choke-hold last month. (I don't let them have armor in the [m]ilitary [w]eapons submenu until they're more trained, yes, that option gives some tiny fraction of what I'm looking for, but still doesn't really let you have preference between the regulars or elites, unless you only let the elites have plate, for example, and it's perfectly affordable to just, for example, deck all of the brawlers in iron except the really valuable and skilled ones, who get steel or better).
The process of making which pieces of armor and from what material is thoroughly customizable, and yet the determination of who gets to wear it is essentially "whoever can wear it and grabs it first". It would be nice to customize who gets the copper helm and who gets the Übertanium (okay I'm getting sarcastic here, but you get the point).
A more bloaty alternate route would be an option to specify the allowed material and/or quality level of armor/weapon, much as you'd do for storing things in stockpiles... though I think being able to [a]ssign is a more streamlined interface option and would likely be more approachable to players.