In reply to ow arm:
Great Slab on Cloggy - big walk in, big route, big adventure (you can avoid the [usually] wet pitch)
Horned Crag Route on Lliwedd - 10 pitches not more than V Diff, but choose a good weather day and start early
The Glyders from Idwall - Linking several routes. Charity (S),Lazarus (S), Groove Above (S) (Continuation Crack is good at HVS if you are feeling fired up at this point), then either East Arete (Mod) or better Central Arete (VD) on Glyder Fawr. A good day that gets you to the top.