JL and JO have no real difference, JO just leases aircraft from JL and has a cheaper crew cost.

QF is switching from a daily 333 to 6x744,1x332 in a few weeks, they are using the 2 class 744 pulled from AKL-LAX. JL has a daily 777.
Both QF and JL fly south (NRT-SYD) overnight. QF flies north overnight, JL during the day.
SYD-NRT
JL772 0815-1705
QF21 2145-0630+1 (wed 2145-6040+1)
NRT-SYD
JL771 2000-0635+1
QF22 2030-0700+1