Back on track for the OP, at the moment Virgin doesn't have the global alliance to compete with Oneworld. If you mostly fly long haul, Virgin's network is quite piecemeal and inconsistent.
If you mostly fly long haul, there are some clear benefits to Qantas (even if you mostly use Oneworld partners to fill in the gaps in the QF network).
If you mostly fly long haul, there are some clear benefits to Qantas (even if you mostly use Oneworld partners to fill in the gaps in the QF network).