6: Third Eye Aim. Especially if you're planning on using something that boosts Intelligence above normal Maximum. You get the full value of your weapons as Stat Sticks. Now that it works with Stun/Trip/Stagger/Freeze/Burn/Blind it's the clear winner. Especially since it has a better calculation than the base Physique/Aim. The +Will implant decreases Aim, which Third Eye makes irrelevant. Note: Always applies, even if Physique or Aim are higher than Intelligence. You may want to Train Physique anyway, since it's used defensively sometimes. Aim is never a defensive stat, so far as I know.
Telekinetic Warrior requires you to be unarmed to get any benefit, cannot hit Flying enemies from the Melee slot and requires you to increase Physique and/or Aim for maximum benefit.
1. Status attacks are usually Attacker stat/2 + (Random 1-20) vs Defender Stat/2 + Constant. Third Eye Aim substitutes for X Chance flags, but isn't divided by 2. Intelligence + (1-20) vs Defender + 15
This makes X Chance much more reliable for Kineticists. I'm not sure if it's a bug. You do spend a Perk, and Kineticists are limited to 1 attack/turn without Haste.
2. Best possible Melee Weapon is technically the BFD 9001, but it's not currently available outside the Cheat Menu.
Personally, I don't value raw damage as much as Flags. Kinetic in particular is fairly likely to be resisted.
Stun is an incredible flag, because it takes the target out of the fight for 2 rounds.
Burn DoT is actually a decent Flag now. It is based on the weapon's Burn damage and can stack up to 10% of the target's max HP/turn.
Trip will take the target out for 1 turn and sets up Geothermal Spike.
Stagger makes your Status attacks more likely to land.
Third Eye Aim can give +11 damage ((13 Dumb4Cum + 10 Cybernetic Suprocessor)/2) + 9.2 Accuracy + any stats on the weapon (mostly Evasion). It would also make X Chance more likely to work, but it's already guaranteed.
3. Haste attacks are normal attacks and aren't subject to the Flurry penalty.
4. Telekinetic Warrior just gives you a 'weapon' named Telekinetic Force every time you attack.