First off, I just want to say that I think the meta at the moment is very healthy. Going back to worlds last year and the top 16 being pretty much one colour on either side. Now you can expect to see Whizzard Siphon, Whizzard Temujin, MaxX, Andy, Hayley lock, Ayla, Smoke for runners. On the corp's side, EtF Moon, Hasty CI, Sync, Jammy HB, Foodcoats, Palana, Ag Infusion and Skorpios. I dare say I've even missed some.
Some are certainly stronger than others but they have all made strong performances at recent big tournaments.
Going back to the original question: I think the decks that standout as the strongest against the majority of the field at the moment are EtF Moon and Sync for corp and either Siphon or Temujin Whizzard for the runner.