After playing Nin for a while, Savage Blade, Chi & To > TEN HI SHUN.
It's not quite as simple as this WS > that WS though, since choice is going to vary wildly based on what mainhand weapon you're using. Arguably a different top priority for each of the 8 weapons listed below.
Kikoku = Metsu is Bestu, spam it all day at 1000tp
Kannagi = Hi almost exclusively (more respectable on Kannagi than other weapons, but still annoyingly inconsistent)
Nagi = Kamu isn't crap with weapon augments (related WS bonus plus Mythic AM3 on a WS that likes multi-hit), but you'll use some other WS too (Shun in particular, since Kamu-Shun Light is a staple 2-step self-SC). I sometimes do TP Bonus offhand and Blade: Ten with Nagi too.
Heishi = really depends on buffs:
Ten with sufficient buffs (but poor self SC options aside from 3-step light Ten->Kamu->Shun),
Shun with low buffs or for SC purposes, including simple self-light/radiance,
Chi/Teki/To with sufficient physical + magical buffs
Fudo Masamune = if spamming WS without SCs, probably Shun. If self SC-ing, Hi-Hi should get you best total WS+SC DPS even if the raw WS damage is lower.
Naegling = Savage Blade duh (but not gonna really shine without decent number of buffs on due to the special weapon-specific mechanic)
Gokotai = For non-RMEA NINs - makes Ku decent for raw WS damage, but meh. Prob still better off with Hi for better SCs in most situations though. Sadly, it's prob better still to just use Naegling instead.
Tauret = Evisceration spam go, very solid option for piercing weaknesses. Aeolian Edge if you want to AoE stuff.
I'll let someone else talk about HOT SHOT lol ;)