I don't think either of the women you posted are especially attractive. Yoda's hotness is unstoppable anyway. Proof follows:
  1. Many people think that in men, Power=Attractiveness, or at least increases it greatly. 
 2. Yoda has a ton of power. 
 3. Therefore, Yoda is absurdly hot.  
http://i40.tinypic.com/ngrfp2.jpg)