Northern Light
Superstar
It's hard to think of any city department or service run so well that they really shouldn't rock the boat. Perhaps the Toronto Public Library?
Library would top my list.
But there are others that do respectably well.
The Waterfront Secretariat, Public Health and Green P (even if they do undercharge for parking), all consistently deliver their mandates pretty well relative to budgetary allocations.
I've also said that, and will stick by having an enthusiasm for the Cycling/Pedestrian Unit; there are multiple good staff who are really trying hard to better the City, when you see set backs and delays, more often than not
this is for reasons beyond the control of said unit.
That does leave a host of other business units in this City whose performance ranges from 'just good enough' to utterly abysmal.