Pictures of the "Room from Hell" would be very helpful along with height, width, depth. Sealed room or open to other spaces and total cubic footage of all open areas.
Use % like movie, TV, music, and gaming.
Speaker layout... 5.1, 7.1, 7.2, etc....
Do you want bookshelf speakers or towers, (in-walls, in-ceilings: not recommended unless needed for surrounds).
What speakers, subs, and AVR do your currently have? Are you planning on upgrading?