Grab yourself a Greek/Antiochian prayerbook and compare it with a Russian prayerbook. The differences are striking, especially when it comes to the antiphons.
They also do things differently when it comes to their usage of the Horologion.
I am familair with Slavonic liturgy, so I can's say. But I will pay more attention next time I am in a Greek or Antiochan church (I prefer Slavonic singing to either of the other two; what can I say, personal preference).