News: TPM Telstra gets favourable competition ruling on mobile network, page-6

Telstra is the top end.

Optus and Vodafone mid-bottom.

TPG is mid to bottom eventually with its network. TPG might have the data advantage with its fibre networks. TPG would probably save a bundle moving its existing customers from its current reseller arrangementd to in-house.

Data is more valuable to people these days then calls included. Also potentially wide coverage vs more data.