Do a search on Kayak with LCY as the departure airport, unfortunately I don't think there's any European Airlines flying to Australia anymore so you will be looking at two stops minimum and multiple airlines vs one stop on one airline via LHR or LGW.
I'm sorry what ? Have you missed some words from your paragraph ?
"I don't think there's any European Airlines flying to Australia anymore" ???
Two stops minimum ?? From Europe ??
Don't you count Air France,KLM or Lufthansa as European airlines any more ?!?!
Also, I know nobody wants to fly Malaysian these days, but there are other Asian airlines with a decent reputation !
Get your facts straight man !