But as your territory is localized and permeable, they can simply walk through and pick off favored spots, turning your lands into Swiss cheese.
I have usually been playing pariden, were it's 50 mana to drop an arcane monolith ahead of a pioneer.
The challenge, for pariden, has been building up enough strength to be effective in the early game (either commanding respect, or to go on the offensive if that's not possible). But pariden is ideally suited for diplomatic victories, in my opinion.