Geneva???

How early is your flight from Geneva airport? It makes sense that you want to sleep within an easy connection to the airport and Geneva's main station is only 10 minutes away. Your daughter should have no problem traveling later from Geneva to Leysin, with connections departing about hourly.

For info on vising Geneva, I'd look at www.myswitzerland.com, Lonely Planet, and/or www.viamichelin.com.

Of course, another option/monkey-wrench would be take a TGV (fast train) direct from Paris to Lausanne, midway between Geneva and Leysin, and covered in Rick's guidebook. For you to backtrack from Lausanne to Geneva airport is one hour by direct train.

One day 12 years ago, I did a day trip by train from Geneva up to Gruyere, to visit the town and the cheese factory, as described in Rick Steves' guidebook.

Depending on the weather, just cruising on the lake ferries is pleasant.

The old town in the center of Geneva is well worth visiting. The cathedral is beautiful and they have excavated underneath it down to the 1st century...fascinating to visit! Great antiquarian book shops, antique stores, and art dealers in the neighborhood.
If you are into science make a reservation to tour CERN.
Take the train around the north side of the lake and stop in Lausanne to see the cathedral.
Go to Montreux and visit Chateau Chillon.
Take the train up to Gruyere - the cheese factory is pretty touristy but the old town sitting on a hill is really nice - touristy but nice.
Walk the lakeside promenade in Vevey - relaxing and beautiful!

there are two guidebooks that both start with "F" that will have info on Geneva, Rick's books do not