I used to enjoy hanging out at the Eaton Centre but not as much now.
They have the best variety of stores and price level goes up with the floor number. Nothing really interesting though. You can basically find the same stores here and there in other malls around GTA. EC just does a (good) job of putting them together in my opinion.
EC is conveniently located in the downtown core so I can access a great selection of dining/shpping options outside on Yonge Street as well. However as a result of the location, more often than not I feel being pushed by the hordes of people so it is not quite a mall to casually take a stroll.
And the so-called "cadillac WIFI" does not connect half of the time I am here. Ridiculous. The WIFI powered by other stores (Saks and such) is more reliable.
I have to admit the mall is well-kept and clean with nice design though.