Not true, China's claims are best known in the West because everybody hates/fears them. But there are others - like the dispute between Indonesia, Malaysia, and the Philippines regarding maritime borders.
> the dispute between Indonesia, Malaysia, and the Philippines regarding maritime borders
There are disputes over territorial waters and EEZs. China uniquely claims the whole damn thing, not as its exclusive economic zone, but its sovereign territory. The Philippines aren't asking for the right to tax ships passing through its EEZ, it just wants to fish and drill and mine them.
