When comparing Q-Dir (the Quad Explorer) vs One commander, the Slant community recommends Q-Dir (the Quad Explorer) for most people. In the question“What are the best file managers for Windows?” Q-Dir (the Quad Explorer) is ranked 2nd while One commander is ranked 14th.
Ranked in these QuestionsQuestion Ranking
Pro You can view 4 windows simultaneously
Pro You can use tabs in every window
Pro Does not use a lot of RAM
Q-dir with 4 windows and with 4 tabs in every window uses only 39mb of RAM on Win10x64.
Pro Highly manageable multiple windows
Every window can be separately customized. You can choose between different views from 1 to 4 windows, and every window can have multiple tabs!
Pro Q-Dir allows you to save folder combinations as a favourite to open any time
Up to 64 folder combinations can be saved in a favorite, since each of the four windows is equipped with tabs (ie 4 x 16 tabs 4 x Tree View plus 4 x Address Bar).
Pro Very customizable
Pro Miller columns
Like Finder from macOS.
Pro Simple and Fast.
Fast search and filter.
Con Sometimes may have bugs
Con No search
Con Context menu only based on icons