Are the british musks really the strongest musk in the game?

A lot of people claim british musks are the best because of AA, home city cards and church upgrade(which is very controversial anyways). But today I realized while french and spanish get +%30 hp and damage from guard musketters upgrade, british musks get only +%10 hp and damage from life guard upgrade. It is also more expensive for british to upgrade its units. Same goes for hussars. Am I missing a point?