So with a Dex Barbarian you have for example 12-18-18-10-14-10 which gives you: incredible toughness, High AC, High HP, and sucky dps.
With a Str based Barbarian with some points in Dex 18-16-16-10-14-10 gives you: Incredible toughness, High AC, High HP, and great DPS since you can now use...