If you're skipping Divine Avalanche, I'd probably go with Dual Blades. Top end DPS is comparable, which is to say that you'll do less DPS on Dual Blades by forsaking recharge (just as you would with Katana by forsaking recharge). Without rechecking the numbers, I'd probably give the AoE nod to Dual Blades, even if not by a large margin, but Sweep gives you some mitigation. Katana would do better burst damage, if that matters to you. But if you're running around with soft capped defenses on a Willpower, anything that challenges you (solo anyway) will probably last long enough for burst to not be a big deal.
"That's because Werner can't do maths." - BunnyAnomaly
"Four hours in, and I was no longer making mistakes, no longer detoggling. I was a machine." - Werner
Videos of Other Stupid Scrapper Tricks
I know I wanna use one of these two toons, but which one is better for single target vs. AoE damage?
For Katana I would build enough recharge for GD-GC-SD-GC
For DB, I would forsake recharge and go BF-Attack Vitals
I figure eschewing Divine Avalanche for now, the DB would be tougher due to the sweep combo and less recharge slotting, meaning more slotting for HP and Regen (in addition to 45% E/N/F/C defense)
So who does better Single Target DPS?
Who does better AoE?