Swiss Pass, Half Fare Card or 4 day Swiss Card

Hello,

This is my itinerary for a 7 day trip to Switzerland with the point-to-point train trips I will need.

Day
1 Zurich Lucerne
2 Lucerne Mt. Pilatus
3 Lucerne Interlaken
4 Interlaken Lauterbrunnen
4 Lauterbrunnen Murren (RT)
4 Murren Schilthorn (RT)
5 Lauterbrunnen Wengen (RT)
5 Wengen Jungfraujoch (RT)
6 Lauterbrunnen Zermatt
6 Zermatt Matterhorn (RT)
7 Zermatt Bern

Bern Munich (already booked)

What would be my best option from the following 3?

a) Swiss Pass starting from Zurich to Lucerne and Zermatt to Bern with 50% everywhere in between
b) Half Fare card everywhere
c) 4 day consecutive saver pass (2 of us) for days 4-7 and full price otherwise.

Thanks,
Nivas