In my Opinion BSK and Vaishali Both Deserve LHB But BSK Is CBC Coupled Train and It can Easily Run above 110+ Kmph and If LHB milti bhi hai BSK KO to Seating Capacity kum ho jaegi and Ek Overcrowded Train ka Seating Capacity kum karna sahi nhi hoga.
And Incase of Vaishali, Usko LHB Milni chahiye, Kyuki It is one of the Legendary trains and LHB se maybe Thodi Priority Badhe NCR me, Kyuki Vaishali aisi train hai Jiski Priority Bahut He kum hai (In my Opinion).