>>507938438
The answers are for the local flavour of Orthodoxy, your holy mileage may vary.
>Does Orthodoxy suffer from Mary worship
No, she is just a caretaker figure.
>clergy as middlemen between you and God
Extremely frowned upon.
>and church politics the way that Catholicism in general does?
It's a Church, of course there's politics. Usually smaller temples and churches do not involve any outsiders though.