I DM a good-aligned werewolf in my campaign. I house-ruled some changes, the good-alignment the most-obvious, so he's not totally legit, but this is what we're working with, using the PHB, MM, Exalted Deeds, Complete Warrior, Complete Champion, Magic Item Compendium, and to a lesser extent Spell Compendium. I don't have his sheet, so bear with me:
Kragg: NG Half-orc male werewolf ranger 6/stalker of Kharash 5/warshaper 2/kensai 3.
-Kragg is physically the strongest PC. Combine half-orc, werewolf, warshaper, and kensai, and it's easy to see how he got there. I'm not even certain of his base strength, but I know he can push it into the 40s.
-Kragg can track evil using his nose (on top of the +4 survival the nose gives him already), scent evil from stalker of Kharash (acts like detect evil when Kragg inhales), and detect evil through blindsense using the feat nemesis from Exalted Deeds.
-With his signature maul "Dourstone," Kragg can stack power attack and favored power attack (evil) and deal hundreds of damage (200+ on a crit easy, one time he dealt over 400 damage using the rhino's rush spell) against his favored enemies, which include undead, constructs, and, thanks to stalker of Kharash, evil. Imagine evil as a favored enemy.
-Since taking feral strike (a home-made feat that allows him to use his two-weapon feats with his claws, something I wouldn't allow otherwise) at 18th level, Kragg is now unleashing a new brand of destruction. Combine that with his kensai imbue abilities, nemesis, incredible strength, favored power attack (evil), and greater two-weapon fighting... well, use your imagination.
-His stealth is through the roof, with maxed out hide and move silently. Add hide in plain sight from stalker of Kharash, and Kragg is a stealth expert.
-His movement is awesome. As a wolf, Kragg can achieve movement 50 if necessary. His high strength and jump ranks make him able to leap great distances. Swimming and climbing are no problem either.
-He's immune to crits and stunning thanks to warshaper, has the DR 5/silver, and has vampiric imbued into his claws thanks to kensai.
I understand how fudged he is, and we joke about it constantly at the table, but Kragg really is an interesting PC. The good-alignment comes from his devotion to Selune, patron of good-aligned lycanthropes (FR world). The NG kensai comes from his connection to Kharash, sort of like a variant paladin or ranger. Since he's got an exalted class and feats, I cursed him for committing an evil act (slaying a foe who had submitted), forcing him into wolf form for roughly 6 months out-of-game. I feel like that time stuck in wolf form allowed him to pay his dues. I had to do something.
