yup. 1h dw is best for paragon lvling/aoe farming. also known as the WW barb build. 1h dw is also viable for hota smash aka uber solo build.
for weaps u want a cheap echoing fury with the highest crit hit % dmg possible and 0.25 attacks per second if possible say like 850 dps 95% crit hit dmg 0.25 aps and 150+ str.
next weapon u want an axe or mace ( axe preferred with % crit hit dmg, 1 socket for more crit hit dmg, and str if possible, ie 800-900 dps 80-99% crit hit dmg and str.)