A Sword Saint gains everything important at level 9? HERESY!
What about adding Intelligence to damage at level 13? Permanent when using Shatter Defenses.
What about Bane Weapon for +2 AB and +2d6 damage?
What about Hole/Axiomatic Weapon for +2d6 vs most enemies, +4d6 vs some?
What about Ghost Touch vs those annoying Ghastly Guardians? ...even Brilliant Energy is situationally useful in Pitax.
What about always rolling 20 on your Initiative - never being flat-footed and always catching enemies flat-footed?
Possibly increasing crit multiplier?
Higher level spells, you know, like Transformation, True Seeing... maybe full power Sense Vitals and Echolocation with Spell Blending Arcana? (last 2 need a mod)
What about having a Combat Reflexes-similar feat?
Absolutely destroying enemy casters in melee range with AoOs?
Lastly what about substituting full SS level for BAB to meet feat requirements (such as Greater Vital Strike)?
Not that I disagree that these are good features, most offering some counterpoints explaining why I chose other classes over getting these:
INT to dmg is just dmg at the end of the day. +7 dmg (which is likely what it will cap out at) is the same as +2d6 sneak dice.
Bane is really good but there are weapons with it on so if you use those then it won't stack.
Holy can be obtained by a min/level Cleric/Inq buff.
Axiomatic is really good though and quite hard to obtain, that's of the best things you get for sure.
Ghost Touch can be gotten on certain weapons and is situational.
Brilliant Energy is
really situational.
Uncanny Dodge is just as good as roll-20-on-initiative and can be gotten faster.
Most buffs on the spell list at later levels can be cast by other party members.
Combat Reflexes is enough, that ability is just saving you a feat really.
Enemy casters are only situationally problematic and I have other tools to solve problems like that, I don't need to destroy casters in melee because I already destroy everything in melee.
I already have fairly high BAB and don't need to qualify for any feats like that.