Strategy no.1 farming- farming is just protecting you storages by putting them in the middle of you base so you can get MAX amounts of gold and elixir. This is done by putting your town hall outside of your walls. This is recommended for any town hall .
Strategy no.2 trophy hunting-trophy hunting is the exact opposite of farming so you put your town hall inside the walls and not protect your storages as much. This is recommended for town hall 5 and up