On Windows I've been using Total Commander for 15 years or more. There's nothing like it on Mac, and I've tried them all. But there's this new app, Files (http://filesmanager.info/), which is being actively developed and gaining features fast. I've been using it for some time now I'm liking it more and more. The developer behind it is very responsive and skilled and it seems to be going in a great direction. There's hope for OS X! :)