One thing overlooked is how flexible dual wielding can be. DW fights aren’t typically the in your face kind of fights. You duck and weave your way around the battlefield.
I got Asterian(sp) set up as a thief and dual wielding scimitars and the versatility was pretty powerful. He had those boots that give mobility and that helm. He pretty much owned the battlefield.
1: Backstab one and kills, cunning dash, bonus hit on another.
2: Use two bonus on one then longbow on another.
3: Bonus attack, cunning disengage, run as far away as possible, longbow,
etc
These don’t include the 3rd bonus action granted by helm. He pretty much danced the battlefield.