Incenjucar
Legend
I'd refrain from tying the powers too much on the beast type, and let the player decide his beast type. Wererats, werepanthers, werebats and wereweasels would choose Dex-based powers and werebears, weretigers, werewolves and werecrocs would choose Str-based, but I think the player could be free to make a quick werebear that is quicker than the average werebear.
Agreed; this is my general philosophy on monster classes. Shapeshifters (not just werecreatures) are unique enough unique enough to have their own class somewhere between barbarian and druid, possibly with charisma and wisdom secondaries. Really, the main issue is watching out for MAD. Monster classes and races could very easily fill out their own PHB if WotC ever took the idea seriously enough.