A disparity ?
Dual wield with the good feats allow you to add your modifier 2 times instead of 1.
There's also a feat that allow you to use non-light weapons meaning you can have a 1D8 weapons in both hands.
You can also add +1D4 damages to both weapons at the cost of a single bonus action (dipping)
+1/+2 weapons while dual wielding double your damages if you compare with a single weapon (1H or 2H)
Maybe you consider 2H with GWM, which is way too op because of the easy advantages but dual wield have significant pros if your character is well builded.
Last edited by Maximuuus; 23/02/21 06:25 AM.