What to look for in a TH9 layout
Town Hall 9 brings the Archer Queen and the first X-Bows, so a TH9 layout has to protect the Queen's altar and keep both X-Bows from falling early. Air attacks with Lava Hounds and Balloons are common at this level, which makes the spacing of the air defenses and Air Sweeper angles important.
Ground attacks often combine Golems, Wizards and Pekkas. Compartments that break the attacker's funnel and keep the Clan Castle central make those pushes harder to control.