Well sometimes I need to know who my target audience is and what content you are running because mostly the builds I have are only focused on maximizing dps output for group endgame content. So it may not be as practical for someone who’s just questing and running through the story.
If Crit % is lower then 30% then I’d suggest:
Actives: Flowing Strike, Spirit Blade, Supreme Harmony, Hone, Tsunami, (secondary power ability)
Passives: Draw Sword Draw Blood, Storm Surge, Masterpiece, Keen Edge (secondary passive ability)
If signet of Bladestorm in NOT max level you may need additional chi generation to maintain 100% up time of spirit blade. Replacing the secondary passive ability with Focused Breathing should help with that). Or use a blade that generates chi as Merihem mentioned like razors edge.
If Crit % >30%:
Replace Tsunami with Swallow Cut and replace Storm Surge with Hardened Blade (The hardened blade passive with a max Bladestorm signet and Supreme Harmony is normally enough to keep your spirit blade up all the time).
Now weapon choice is the next big factor. Honestly DPS wise I don’t think anything right now competes with Blade of the Seventh Son MK3 of Energy (preferably) Havoc is nice also. With this weapon the combination of Swallow Cut and Spirit Blade damage accounts for about 70% of my damage output. There are a few options to counter the damage received from this blade. Personally I rely on the Healing from Supreme Harmony so that I can still run laceration signet. However this is not optimal for scenarios, so either a second tali with a cruel delight or a Seventh Son of Restoration is another option. You will of course take a slight loss in dps with each of these options though.