With an easy to use interface, connect to FTP (File Transfer Protocol), SFTP (SSH Secure File Transfer), WebDAV (Web-based Distributed Authoring and Versioning), Amazon S3, Google Storage, Windows Azure, Rackspace Cloud Files and even Google Docs. 36 languages. Portable only for Mac, in Jan. 2012 not for Windows More info »
The best ftp on windows for sure. If you are fillezilla user it will be so easy to jump with import to cyberduck.
I think this is the best FTP-and-more browser ever, although I have not tried Transmission. But Cyberduck is free and open source, so I have no need to look for more. I love it.