Help me about choosing school in Hotel management in Swiss?

PLease give me advice to choose among Les Roches ,Glion, Htmi and SHMS.I don't know which school is better about the life students ,academic programs and job oppoturnity. I heard that Glion and Les Roches is better than SHMS. Is there any Vietnamese in these schools because I'm from vietnam.It's better if we have some friend to discuss especially the first time.Thanks alot