Wife and I need to go from Munich to Geneva [INVALID] spend 5 days hiking in Switzerland [INVALID] then go to Dresden and later from Frankfurt to Berlin. All within 30 days in Sept. and Oct. Is a multi-person Saver pass the way to go? Will it be good on Swiss trains and buses?
You only mention 3 days of travel. A Swiss German pass of two is 5 days min for almost $700. If you are willing to book well ahead on the German Rail website, http://reiseauskunft.bahn.de/bin/query.exe/en, with non-refundable, train specific tickets, in 2nd class, you can do Munich to Geneva and Geneva to Dresden for €78 each leg total for both of you. You can get Berlin to Frankfurt for €49 for both of you. Mind you these tickets are tiered priced, go on sale 92 days before travel time, and sell out quickly at the lowest fares.
Two-country passes often do not work as well in Switzerland as a pure Swiss Pass. For one thing, the 2-country passes are only available in first class, which you don't need in Switzerland (and many trains up in the mountains don't even have 1st class). also, they may not fully cover some routes on private trains, so you have to pay a supplement, when a Swiss Pass would cover the journey fully. And for Germany, as Lee noted, you can often do better with the various discount tickets. So the best combo may be PTP ticket for Germany and some kind of pass for Switzerland. Which kind of Swiss Pass depends on how far you will travel from the border into Switzerland, how much moving around you will do, and whether you will be riding lifts and mountain trains to access your hiking. the answer may be either a Half-Fare Card or a 3-day Flex (aver) Pass, or maybe a 5-day consecutive pass, but it all depends on the type and amount of travel you contemplate.