I'd expect two Lightsabers to be comparable (bearing in mind that only STR, not 1.5 STR, is added to main hand damage, and 0.5 STR to off hand damage), but averaging around 500 damage per round regardless of weapons and combat feat used is massive overkill against the vast majority of enemies. effect damage 7) if you didn't know that 1.5 * Strength modifier (STR) is added to single Lightsaber damage.

although not by as much as might have been expected (only ~2.7% more, or ~3.8% more with misc. effect damage 7 in total (7 * 0.95 = 6.65 average per attack): MasterĪlthough this strengthens Flurry (due to its extra attack), Master Power Attack still inflicts the most average damage per round in every case, but more with a Double-Bladed Lightsaber. If you use an Echani Battle Stimulant (2 minutes) and Master Battle Meditation (20 seconds) as well to add misc. These figures are for a level 30-31 Sith Marauder who didn't start as a Jedi Guardian, using Ferocity (Juyo) lightsaber form with a black Name Crystal focused at level 27-29, and 64 Strength after using a Hyper-adrenal Strength stimulant (2 minutes), Master Fury (60 seconds) and Master Valor (20 seconds): MasterĦ4 Strength adds 27 Attack, which should result in maximum 95% chance to hit and 100% critical conversion against all targets, even with an off hand Power Attack. u/Tempered-Soul, I've yet to properly investigate dual wielding Lightsabers, but I have some figures for the average damage per round of a single Lightsaber and a Double-Bladed Lightsaber. (Disclosure: I posted in this thread for elaboration.) Higher STR favours double-bladed lightsabers and single, low STR favours dual wielding. The lightsaber configuration also depends on the STR rating of the Exile. GameFAQs thread: (This is page 20, look through pages 19 to 22 for the full answer for lightsaber configurations, lightsaber forms, and attack feats.)

I believe Onderduiker has some calculations overturning the dual wielding part when it comes to Juyo, DM him for this or hope my tagging here draws in a response. The GameFAQs thread from a decade ago concluded it was Juyo + Master Power Attack, followed by Shien + Master Critical Strike - both assuming dual wielding.

Refer to the above comments by u/Onderduiker here. (Edit: the actual comment thread pertaining to KotOR II.) (this comments pertains to KotOR I, apologies for linking wrongly.)

Kotor 2 black lightsaber