There are 25 named attribute combos and it seems as if they are assigned to dropped weapons completely randomly. I end up have to salvage the great majority of items I collect because the attributes on them have no relation to the weapon. Battlemage and spellsword, for example, are niche classes, but axes seem to have an equal chance of dropping with intelligence as they do for strength. The gear score watermark grind is already hard enough; it would be more fulfilling if I could at least use most of what I earn.
I strongly suggest that at least 90% of the time weapons should drop with attributes suited for that weapon: strength weapons with strength, dex weapons with dex, etc. Otherwise odds are that the majority of drops are just trash.