I think the high sparrow is very allround, and he can support any kind of list.
What can really do is keep units alive. Combining that with the already sturdy flayed men, I had some succes:
[FONT="]Faction: House LannisterCommander: The High Sparrow – Father of the FaithfulPoints: 40 (10 Neutral)Combat Units:• Gregor Clegane – The Mountain That Rides (4)• Knights of Casterly Rock (8)• The Flayed Men (10)• Knights of Casterly Rock (8)• Lannister Guardsmen (5)Non-Combat Units:• The High Sparrow – Father of the Faithful (0)• Pycelle – Grand Maester (3)Opponent Attachments:• Jaime Lannister – Maimed Hostage (2)Made with ASOIAFBuilder.com
You can protect the flayed men from their only weakness, their morale.[/FONT]