On OSX you can use Cmd+` to switch between the windows of the active app. The Cmd+Tab behavior on OSX was annoying to me too when I first started using a Mac bu

On OSX you can use Cmd+` to switch between the windows of the active app. The Cmd+Tab behavior on OSX was annoying to me too when I first started using a Mac but now that I'm used to the Cmd+Tab and Cmd+` combo I actually prefer it to the way Alt+Tab works in Windows.