Coaches to same hi honge
Lhb and lhb bs gatiman k thode ache h aur shatabdi k thode bekar as maintainence of shatabdi is not good
But one thing
Somw people don't find difference in a Langda Aam and Dussehri aam
Depends...
more... upon taste, kisi k ly ye dono sirf mango hi h without any difference kisi k ly ye mango to h but variety aur taste alag h
Similar with 3Ac of an ICF, LHB, HS, GR & Dur