What a great question. We have been so fortunate to be able to travel all across the globe and to so many "once in a lifetime" type places. Up until our visit to the BO area when someone would ask "What place was your favorite?" or "What place was the prettiest" we would give the old......"Well, it depends on.....". After visiting BO, it is easy = we shout out loud "The Bernese Oberland is the prettiest/best/nicest place we have ever visited."
Why? It starts off in the Lauterbrunnen Valley when you look up at two granite like cliffs. In lots of mountainous regions throughout the world, you see either a lot of green, or a lot of granite, or a lot of snow. In the LV, you see all of it. And the greens in the hills are not real (they will not admit it, but I think the people who live in the BO region spray paint that grass to start every summer season because it is simply too beautiful).
Then it is the public transportation system that takes you by train and gondola to so many areas in the BO area. We had already been on several famous train journeys in Switzerland, and I must say that the single ride from LV up to Kleine Scheidegg was as pretty if not prettier than all of them.
It is villages like Murren and Wengen which are still active communities. We stayed in a hotel on the cliff of Murren....we got a balcony room for four nights and once again I could not believe it. That view from that hotel (and from almost any point in Murren) was again not real. I have never seen anything like it, and I am talking about Alaska, Norway, Rockies, etc.
It is the hiking trails that are so numerous and laid out in such easy to understand detail. It is the ability to choose between dozens of easy hikes and hundreds of hikes that will ruin an Americans knees for life :-) (whereas the Swiss seem to walk these with so much ease).
It is hoping on the gondola car up to Gimmelwald or Murren and after picking your jaw up off the floor from looking at the scenery you notice a few younger looking kids with large backpacks on their backs......and after doing a double take realizing those are base jumpers that are walking off the gondola and soon thereafter off the side of the mountain.
It is finding the luge ride, or the Trotti bike ride, or the tandem paragliding ride or the boats on the two lakes.......or who about realizing you are only an hour from Thun or a bit past that for Bern.
It is realizing that the next time you go back you have only scratched the surface (this is us) and that you should find more hikes and more places such as Kandersteg or Brienz or Meiringen.
It is finally realizing that you just spent a good 15 minutes smiling while typing a reply that was probably too long and way too much information.......but I hope it helps you anyway, and we look forward to hearing about your smiles when you return home!