Yes, as mentioned in one of my previous posts, I like to use the slightly long lens to isolate something. And I agree about the wide angle relating things to one another.
Isolating something seems to be a little easier for me (I get more comments on good composition from these kinds of pics than in wide angle shots).
Perhaps I tend to prefer the longer shots (in 4x5, at least) as kind of a reaction to the average Joe's point and shoot, digital or whatever wide angle shots.... the kind you see all the time from family vacations, where they simply zoom out to as wide as possible, and take the picture without thinking about anything else. These kinds of shots (mostly panoramas) simply bore me to death, with few exceptions. These are usually so common, there has to be interesting light or weather in order to make it stand out from the others.
On the other hand, when I look at a book or something from some famous photog who uses wide angle lenses a lot, the composition and relationships in the scene make them much superior to the previously mentioned "average Joe" photos taken from the scenic turnoff on the highway or at the edge of a cliff or mountain or something. To go back to example of Muench, I love some of his photos of southern Utah with all those weird rock formations; they seem to draw me in, and the objects lead my eyes in a way most panorama shots don't. I really respect what he and other good photographers can do with a wide angle lens.
Also, another thing I thought of is that some scenes seem (to me, anyways) like they need to be compressed or expanded a little bit, by using a longer or wider lens (just like a someone making portraits will use something a little longer). It all depends on what I'm looking at, and how I want to express it as a print.