3. Unarmed strike. Why isn't an unarmed strike a light weapon? Right now you can't two-weapon fight with two fists, or use an unarmed strike as an off-hand weapon, because unarmed strike doesn't have the Light property.
Actually, the more I think of it, the more I'd prefer unarmed strike to have the versatile (1d4) property: so that if both hands are free, you can actually do damage.