Sydney or Vancouver?

The two cities are similar, but the common point is that there are many Chinese, and Chinese is almost universal. But the weather in Vancouver is cold, and it is said that the suicide rate is the highest in the world. If you study abroad, the universities in Sydney are better, and so is employment; As for immigration, the conditions are not much different. If you have money, you can go. Personally, I prefer Sydney, but I'm a little worried about law and order.