I picked the SelectPass option since, after using Rick's Cost map to calculate individual ticket price, pass option came very close to point to point option. Here is what I have for point to point tickets (approx fares from RS's cost map):
Paris - Venice: 330 Euros for 2 people
Venice - Rome: 132 Euros for 2 ppl
Rome - Florence: 70 Euros for 2 ppl
Florence - Interlaken: 204 Euros for 2 ppl
Lausanne - Paris: 202 Euros for 2 ppl
Total point to point ticket cost: 938 Euros
Select pass: 6 days, 3 countries, saver edition: 610 Euros
I am guessing Rick's cost map includes cost for seat reservations as well, though I couldn't tell from the description. With the pass option, assuming reservations cost another 400 Euros in total (can't get this information easily), I think the pass option is close enough in cost.
I thought getting the pass was more convenient as well. Do my numbers look about right?
Sorry for so many questions, and thanks in advance!