See the post number #3,466 - this guy got decision in 11 months whereas the guy from post number #3,663 got in 7 months - both of them received DM/Portal confirmation from Etobicoke.
Just last week, I got to know (by calling IRCC) that my PVO is Etobicoke and SVO is CIO Sydney. I believe there is no set pattern, everyone's file is unique, differ streams within non-EE, different NOC, number of applicant's, different background etc, etc, there are just so many combinations and factors that could be paying some role, and there is nothing like first come first serve. But that said, I haven't seen any post of applicant going beyond 15~ months with Etobicoke VO. Not saying there is none but at least I haven't noticed so far or I may have missed.