IMO it's going to be very close.
Remaining matches are:
City: Perth(A) and Phoenix (H):
WU: Perth, (Tas), Macarthur (Tas), CCM (A), Newcastle (A) and Adelaide (A);
MV: Brisbane (H), Newcastle (A), Macarthur (A), Brisbane (A), Phoenix (H) and Sydney (A).
TBH, the three of us ought to win all our remaining matches. Our advantage is that we have the points on the board, and our goal difference. Our disadvantage is that we have a tight schedule in the ACL in an inhospitable climate, and we've got several injuries. The slightest slip by any of us could decide the title.