Well, the reaping mauler prestige class in complete warrior is a 5 level class dedicated to barehanded grappling. The grapple rules are practically designed for shutting down characters fixated on their giant powerful weapons. The no/light armor requirements mesh well with a lycanthrope's desire to wear things that won't interfere with changing form. The trick would be finding a good base class to get him through the entry requirements. Monk is hardly ever the right answer.

There was a prestige class in one of "The Quintessential" series (Mongoose Publishing; old as dirt, but none the worse for wear) which was basically a very focused hunter. So much, in fact, that the prestige class name changed according to what creature the class-bearer specialised in: Human Hunter, Gnoll Hunter, etc.

Unfortunately, the name is generic enough that I can't find it now. Quite a bummer, considering I planned one of my villains to have that prestige class.

Instead, I'm going to direct you at "The Quintessential Ranger II". See "Multiclassing", it gives a comprehensible breakdown of what pros and cons you'll get when mixing with any other class. Take extra heed of "Variant Rules" - that's where the fine tuning is.
I'd recommend Ranger/Barbarian out of the bunch. Should do decently in a one-on-one melee scenario, although somewhat poorly outside of it, i.e. against the whole party.

Here is what you do.
Either Warblade or Unarmed Swordsage from Tome of Battle.
Go into the Blood Blade prestige class, take Tiger Claw maneuvers.
Shred the fighter to bits with authority.

Also
>optimised fighter in 3.5
>full plate and BASTARD sword
Just take any class from PHB2 and put him in the dirt.

>>317734
>unarmed
>Blood Blade
>Throwing and catching your claws
This is the best
Go with this
He can regenerate, it should be fine

>>317764
Sue me, I forgot which was the berserker shifter prestige class offhand. Even though that does sound fucking awesome, throwing your claws.
>:p

Wolf Trip+Improved Trip, use an Orc, wield jovar or ripper from PlanarHB, get the UP to buff the shit out of 'im.
that Bastard sword? Disarm.
use a triple-weapon-capsule-holder from CAdv, for poisons or possibly worse.
Barb 1 ACF for pounce.
>recurring villain
that might be a problem if you're unwilling to R0 his escapes.
>He will evolve at the same speed, thus having three level less than the PC,
ECL != CR, FYI, even if each aren't considered most reliable. Animal HD are pretty shitty, too.
>high dommage output
Whips and chains are good for that I hear- ReachPlus with a bonus to disarm (/joke)