Need help for choosing best Rail pass for 3 adults

Hello There

My name is Brian and I am planning to visit swiss on september 18th. (from canada)
I arrive in Zurich on Sept 18th and will be staying there till 20th sept morning

I will need to use train on,
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Sept 20 - Zurich to Luzern
Sept 22 - Luzern to Bern
Sep 23 - Bern to Geneva
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Sept 24 - Geneva to Toroto (plain)

I've done some research my self fom the site and either Swiss Save pass or half Pass? had lower prices for 3 adult passengers.
I am still confused and it would be amazing if you could provide me with some solutions =)

Thank you

Hello Annika
Thank you for the quick response. I will go ahead and go with Swiss Half Fare Card. Another cousin of mine will join the trip and now but I think end result is basically same.

I appreciate the help looking forward to visit Swiss in September.

Thank you