Jul 22, 2011 - 11:52 AM
Way too much to cover in 9 days. Every time you change your base you lose 1/2 to one full day due to logistics: packing/unpacking, checking in/out, train travel, etc. Lots of rushing around. Not a very "romantic tour" in my opinion.
With 9 days I would choose two bases.
It seems you want to do two different kinds of things. Hiking, biking, and taking in the scenery (and in Switzerland, that means the mountains!) are in one group, nightlife in another. The first group can best be accomplished by staying up in the mountains. I prefer Wengen over all others. It is a car-free village with stunning scenery, a bit larger and with more amenities and a bit easier to get to than Mürren. Glorious hikes, gorgeous boat rides, beautiful bike trails, fantastic gondola/train rides to high mountain peaks, very good restaurants. I find Wengen to be the most beautiful place in the world. However, mountain villages aren't big on night life. I guess people are too tired from day's activities and a nice gourmet dinner to stay up late! There are, of course, a handful of bars but little entertainment such as shows.
Nightlife can be found in the cities (Zurich, Lucerne, Geneva, etc). These are lovely cities but there are cities everywhere in the world that you can go to. In my opinion, if you are going to Switzerland you should go to the mountains. The Swiss Alps are truly unique in the world.
I would go to Lucerne for your first 2 days to enjoy the "city life", then head to Wengen for 5 - 6 days, then on to Geneva the night before your departure.