Don't think Arsenal are winning the title, when was the last time the title was won without a good striker, rather through a collection of goals? Like a decade ago, indication of the probability. Team isn't as good as Chelsea's and neither is the manager, second best in the league though no doubt. If Chelsea got a long term issue with Costa then they could lack that goalscorer but other than that I can't see it.
CL is a crapshoot this year unless you're a Champion, no guarantees of where you'll finish, because of the variation in the quality of sides you can face early on. Actually agree with Depleted, Coq won't cut it at the bleeding edge unless we see a big step up, he's not good enough and neither are the players in front of him to play a near Makalele role.
Chelsea, Arsenal, City, United/Liverpool will be the top 4 imo.