In reply to UKH Articles:
As a local, I'd quibble with the assertion that the back o' Skiddaw fells are quiet any more - they may be quieter than the central fells, but frankly, that isn't saying very much. I'd agree with most of the other suggestions though, especially the Shap fells and the Whinfell / Whinash ridges. I've generally found that fells in Wainwright's 'Outlying Fells' volume, with a few obvious exceptions e.g. Orrest Head, are often very quiet (and frequently pathless, even now!) If you still want to get up onto the main fells, there are quite a few routes in Wainwright's guides that are ignored by the masses e.g. the north-east ridge of Birkhouse Moor as an approach the Helvellyn, the east ridge of Grange Fell and so on.