Pretty dumb questions. What exactly do you want? A comparison between Canada and Australia with tax and regulatory differences thrown in?

 You're dealing with a publicly traded company involved in resource exploration which is speculative by it's very nature. Yes if they hit big the officers like to take care of themselves but often during the long search for 'the big score' they don't earn an awfully big salary.

Best you learn more before you invest your money. This forum isn't the place for obtaining basic knowledge.