All 3 (416, 905 and GGH) tell an interesting story, but I would argue that the least important one should be the 416, as those lines are more arbitrarily drawn, whereas the 905 and GGH are more in line where people are clustering (choose to live).
In international ratings, especially in Asia, it is very common to viview the number of skyscrapers in a metro area, which is usually quite large! Comparing Toronto's 416 to those cities is like apples to elephants
It would definitely make more sense to compare GGH to those cities, as an example. Comparing against the US cities, because of differeces in urbanisam, 905 might be a more obvious choice.
However, It would be really nice to be able to have the ability to see all 3 metrics, so everyone can choose the one that makes most sense to them in a given context.
We are all different people, with different beliefs and ideas after all
