there are hundreds of file managers out there, but usually i only hear people on here talking about konqueror, nautilus, explorer and ocassionally midnight commander. i never even hear mention of whatever MacOS uses as a file manager.
anyway, file managers do different things. there are far too many norton commander style ones in my opinion, but i have grown to dislike explorer clones (such as konqueror and nautilus) - unlike the commanders, i am proficient in using explorer clones, but they just don't seem too good at their job, allowing you access to the filesystem. no big deal in windows maybe, but a bigger deal in many other systems, where you often want files from a few different locations at once. i don't even know what OS/2 did for a file manager but i did hear on a website some guy saying he thought it was a lot better than the windows file manager (i suppose the one from windows 3.1) for a few reasons.
Anyway, i'm not really asking you what your preferred file manager is (although if you have one, do comment) but which features you think a file manager should have and why, and optionally, if there is a file manager that would fit the bill or perhaps if you know of a file manager that would suit somebody else's needs.
for instance i am sick of explorer clones, and in linux i don't like the idea of konqueror and nautilus having to have the kde and gnome libs installed anyway just because dependencies annoy me. now i tried a couple of commander style managers and didn't like them. they're not intuitive enough and i can't figure out how to customise them properly. now i use dfm, which is similar to earlier mac file managers, but with no menubar and a few of my favourite features missed off, like it doesn't hide dot files, and i can't figure out how to make it do so.
anybody else?