CX are very good at recognising OW elite benefits, the standout being a more friendly attitudes towards op-upgrades than the others. However I don't think the others do that bad a job either (leaving aside the occasional ignorance by BA and AA staff).

Sometimes it feels like Star Gold gives nothing more then lounge access (but only if the airline wants to), points earning and J class check in. OW wins here, especially with the first class Emerald tier benefits.