"Best" is relative but since you're VIP, you'd have Harper Agent. And if you think pure casters run out of SPs too quickly, I would do a THF Eldritch Knight / Pale Master.
A few comments:
- 82 APs so without the tomes you'd drop human Spell Power Boost and a point from Pale Master or Assassin.
- +2 STR tome is required for Improved/Greater THF. If you haven't got one by level 12, take a filler feat (Toughness or whatever) and swap in ITHF after you acquire the tome (either from loot or Favor).
- +3 DEX tome is to trade Power Attack for Precision (hence starting DEX 10). This is optional but I prefer to use Precision on any non-Raging melee build. Alternatively you can either (A) dump-stat DEX and settle for Power Attack or (B) start DEX 13 INT 17 if you're less concerned with maxing your caster stat to start.
- Vistani Knife Fighter is optional, you can also grab Haste Boost from Acrobat instead.
- 8 APs Assassin is for +3 Imbue dice, you could also put those points into Pale Master for more caster bonuses like Unholy Avatar.
- This is also doable as F2P: INT to hit from Eldritch Accuracy, STR to damage. Melee DPS is lower without Know the Angles + INT to damage; but silver lining is freeing up APs for other trees: e.g., 40 Eldritch Knight / 24 Pale Master / 8 Assassin / 8 Acrobat.
