Dueling does sound like a thematic choice for DEX characters. Mechanically though, as long as Dueling works with shields (minimum +2AC) like in Table Top, it's often the better choice from a pure min/max perspective.
If we're only looking at damage, I also actually prefer the +2 from dueling. Damage boosts only have a tangible effect when it changes the # of hits you need to kill an enemy.
The flat +2 (44% increase to 1d8 avg (4.5)) is much more likely going to change that for you than the Re-roll 1s/2s - (average 19% increase on 2d6 avg (7) - which is the optimal weapon for GWF).
You have to remember that GWF doesn't trigger on 3s or higher (which is terrible on 1d10 Polearms and 1d12 Greataxes), and when you get to re-roll, you don't even get to take the better of the 2 rolls.
Got it, thanks! Dueling makes a lot more sense to me now.
