In reply to Twiggy Diablo:
Walking in to Skiddaw House isn't rugged but it does feel really wild by Lakes standards. You've three valleys to choose from: 1. Follow the River Caldew from Mosedale (long); 2. From Bassenthwaite via Whitewater Dash (scenic waterfall); 3. Up from the south through Glenderaterra (also scenic).
Another great alternative would be a loop from Patterdale. Go up Grisedale, always a nice option, to Grisedale Tarn, then up and over Deepdale Hause into upper Deepdale under Hutaple Crag. It's really wild and rugged up there, one of my favourite places in the Lakes. Down Deepdale to finish.
Pretty hard to beat a walk up upper Eskdale for ruggedness and remoteness.
Langtstrath too, that's well worth the walk if you want low level spectacular-ness, and a good dose of wildness. Up that to to Esk Hause, then down Grains Gill for an extended circuit...
Some of the Lakeland passes can be as good as a summit day too, and may keep you below cloud level. Threshthwaite Mouth, Nan Bield, Esk Hause, Sty Head, Black Sail Pass, Scarth Gap Pass... pick a couple and try to devise a circular route...
