The present article deals with the damping and frequency behavior of cantilever skew sandwich plates with different core materials. Viscoelastic layer (VEL), Electrorheological (ER) fluid and Magnetorheological Fluid core (MR) are studied as core materials using finite element method. Critical comparison of these core materials is made in terms of frequency and loss factor. The present study includes the effect of skew angle and core thickness on frequency and damping of the structure. In addition, the influence of electric field and magnetic field on frequency and loss factor were also examined.