I took oversized TWF, but I'm still seeing less damage on the off hand. Using a GS Dwarf axe blank as a go by.
+30 2d8 +15 slash mainhand
+30 2d8 +11 slash offhand
I took this over cleave way back, I think cleave a wasted feat, it doesn't work well IMO. I know you have to take it for Frezied B. Turbine wants us to waste a feat for it, it's bogus!
The paladin class does not have to, why should the Barbs?

The rant
But the truth of the matter is they nerfed the Barb compared to PnP and got rid of critical rage!!! That why the casters pull ahead from level 12 and up. How many barbs has had the the casters steal a kill with PK or FOD ?? I wish turbine would go back to PnP roots and truly balance the game! I can't be the only one that feels this way!
And for the record I've never played WoW and I'm a paying Sub
This is the 1st MMO I've felt good enough to spend money on after the 1st 2 months.