What is the best icon creator for mac? [closed]

I'm new to mac, I used to use Axialis IconWorkshop on Windows. So I want to know what's the best icon creator for mac?

If you have access to Photoshop, then I highly recommend Iconbuilder from Iconfactory. Back when I doing this, Iconbuilder made the creation of resources for a variety of platforms a snap.

Since it isn't mentioned, I'll do it: IconSlate is a fantastic app for creating both Windows (.ico) and Mac (.icns) icons. Simple to use, beautifully designed and does exactly what it says on the tin. Highly recommended!

If you just have a tiff file that you need to make into an icon, you can use the built-in command line program tiff2icns.

(This is probably not the best all-around answer, but it has been useful to me.)