Landscape is just about all I shoot. As for BW vs. Color it depends on the mood I am in, and the situation.
If shooting in color I tend to have a very narrow field of view. I don't like wide angle color landscape photographs. I do like wide angle BW landscape photographs.
Why? I honestly have no idea. I think the color intimate landscape is just that, personal, a feeling of moment and place. I don't get that feeling with wide angle sweeping grand landscapes in color. In BW I do not feel this way at all. I think the Grand Landscape is best rendered in BW. Just a preference I guess.