Double Commander vs FreeCommander

You can use same tool in all desktop OS environments.

If the developer loses interest there is at least the possibility that someone else will pick up the torch.

Lots of options allow you to configure DC the way it suits you best: Tools, Fonts, Colors, Hotkeys, Mouse, Fileviews, Plugins, Layout, Toolbars, Tabs, Icons etc.

Save shortcuts to folders. Organize them in a treeview with submenus. Define a name and sorting for each entry.

so you can use documentation from Total Commander for writing plugins. WCX (packer), WDX (content), WFX (file system), WLX (lister).

For instance, the 'Settings | Layout' pane is quasi-identical to TCs.

Although it is lightweight and simple to use, it can do very sophisticated tasks, like copying files from directories which have a certain extension or file size or have a certain text pattern in them. Also, it's very customizable and stable.

It's all a matter of perspective. I'm not for an argument about IDE's, frameworks etc, but to me that's a big plus. I think it should be a tie, it's either a pro or a con or should that be neither a pro nor a con. It just depends on context.

Makes normal file operations (like move & copy) easy.

Commonly used folders can be added and accessed using the favorites list -- in addition, physical and network drives can be switched to with a single click.

Because it's portable, you can easily move the folder with all your files to other devices.

FreeCommander provides a search functionality that allows you to filter out results.

FreeCommander has a very powerful set of file copying options.

In Details mode you can turn on Folder Data file size.

Has a good set of keyboard shortcuts enabled by default

Simple 1-click buttons to toggle views, enable or disable visual filter, etc. Very simple instant filtering. The folder syncing is as good as "GoodSync".

Also file search, filter and multi file rename functionalities.