In reply to tehmarks:
The Ravenstones was pretty grotty (dirt and scrittle etc) last time I was there and that was during a long hot, dry spell in summer. It's about the last place I'd head to tomorrow, in the shade at 500m with a cold easterly wind and a wind chill making it feel barely above freezing.
Shining Clough will be cleaner (in places) but the rest still applies.
If you must head for remote moorland gritstone I'd go for the Standing Stones, at least you'll see some sun, or Dovestones where you might get some shelter from the wind.
On second thoughts, what about the Kinder amphitheatre where you'll get sun and shelter?
Post edited at 21:27