Actually, while Fang is better than Snow at most everything else, Snow is by far a superior Sentinel. For one, he has severl thousand more HP. And two, he has two weapons which enhance his abilities as a Sentinel. Paladin/Winged Saint, which improves his guard powers, Steel Guard and Mediguard. And Umbra/Solaris which improves Fringeward and Deathward, which keeps allies even safer.