In reply to Trevers:
I'd say Old Man of Coniston. But go up via Goats Water down the main route. It's not the heighest of peaks but this is a lovely walk, so what is not to enjoy. I did this walk with an extended group including some who were less fit and mobile, everyone loved it.
Its so long since I've been out over Swirl Howe and Wetherlam, but are they on good terrain once you are up there?