I don't find it difficult to read at all, but that's besides the point. My favourite is the march from Cuivenen, with the first glimpses under the stars of the more primitive version of the Middle Earth we all know from Rings. Fingolfin leading his host into ME at the first rising of the moon is another good one, a great example of those "triumph from disaster" moments Tolkien does so well (even if, in this case, the "triumph" was to be short-lived).