i've climbed barbs on hc and sc, and it seems to work the best to get around 75 dex, regardless of the weapon, and pump the rest to str.
there was a huge guide that proved that it doesnt matter what weapon type you use, the dex bonus is still a big effect.
however, adding eeto your items is more beneficial in many people's minds.
if you solo at later levels, you will want to get around 100dex, but if you cata, stay around 75, as it isn't needed to protect yourself against crits as much.