They're scenic in different ways.
But the train will be probably be easier, as it has only one change using the best route which has a change of train in Domodossola and a total journey time of around four hours at the best departure times from Orta-Miasino station. From Domodossola, this route takes you on a spectacular mountain railway over the Alps http://www.centovalli.ch/?lang=EN
thank you for your information, it has been very helpful.
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