Consider taking no camera at all. I've never been into the wild and taken a picture that was anything but a disappointment compared to actually being there. Furthermore, if you want to show your friends any of your images they will only be interested in the ones with people in them and capturing a portrait in the backcountry that pleases you is almost impossible compared to what you might think while setting in an armchair at home.
Most pleasing landscape photography is done by people traveling directly to the site (usually by car), at the perfect time of day and year, with the perfect weather and without the time constraints imposed by a backpacking trip. Backpacking and landscape photography are equal avocation, and are best practiced separately, in my opinion. If anything, take a P&S with fill flash for group shots.
Denis K