PCManFM - list view
PCManFM has a left tab providing directory tree view and location view, including bookmarks, and the file view section which occupies the most of the remaining space. You can select in the View menu which one (directory tree view or location view) you want to be displayed by default. It also allows sorting files and directories by several rules, like name, size, modification date, type, permissions and owner. Files and folders can also be displayed as icons, compact list (which is similar with Konqueror's multi-column view), or detailed list (which shows detailed information about each file).
PCManFM also includes tabs, which at the current date is a plus over Nautilus, the default file manager in GNOME. Nautilus is expected to get full tabs support in the next GNOME release, 2.24. It also has a menu entry for compressing and extracting compressed archives, supporting gzip, bzip2 and zip.
It includes only basic configuration options, like sizes for icons or thumbnails, no split views, profiles support or integrated terminal.
In essence, PCManFM is a great file manager for those who like a clean and simple interface, which provides tabs and enough features to be fully-functional and pretty useful. Some even prefer it over Nautilus due to its ability for tabs.