I've just got to say this: Barbs are so frigging uber, it's not even funny.
It took me less than half the amount of time to take down the final Act I boss with my level 16 Barb alone, than when I did it with my level 16 WD in a party with a level 21 WD as well (even accounting for the extra HP).
Frenzy + Ground Stomp + Hammer of the Ancients = Pwnage.
Current PC Build
CPU - i7 8700K 3.7 GHz (4.7 GHz turbo) 6 cores OC'd to 5.2 GHz with Watercooling (Hydro Series H110i) | MB - Gigabyte Z370 HD3P ATX | Gigabyte GTX 1080ti Gaming OC BLACK 11G (1657 MHz Boost Core / 11010 MHz Memory) | RAM - Corsair DIMM 32GB DDR4, 2400 MHz | PSU - Corsair CX650M (80+ Bronze) 650W | Audio - Asus Essence STX II 7.1 | Monitor - Samsung U28E590D 4K UHD, Freesync, 1 ms, 60 Hz, 28"
