When comparing pcmanfm-qt vs krusader, the Slant community recommends krusader for most people. In the question“What are the best file managers for UNIX-like systems?” krusader is ranked 22nd while pcmanfm-qt is ranked 36th. The most important reason people chose krusader is:
Has everything you might wish for and more.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Can open folder as root
PCManFM can open different folders as root, this way you don't have to use the terminal to move around files for which you need root permission.
Pro Simple
PCManFM is a very lightweight and simple file manager.
Pro Has a lot of features
... that only Dolphin, Krusader, Nemo & Nautilus has onboard -
but this one is a small footprint reliable friend.
Pro Versatile
Has everything you might wish for and more.
Pro Root mode
Dangerous but sometimes useful.
Pro Multiple tabs
Tabs with other listings, and options to move the tab to the other side.
Pro Advanced renamer
Via package krename.
Pro Directory compare
Compare 2 directories on content or file/date and sync them.
Pro Archive support
Browse archives as folders.
Cons
Con Some operations are slow
Because it tries to be as lightweight as possible and tries to use very little RAM. This can unfortunately lead to it being slow sometimes.