I have had total commander for years and it does the basics really well and fast.
I am a bit overwhelmed by the plugins and customisation options, in the sense that they are not friendly enough for me to know how to make a good smooth tool out of it. I use some but I find the fact that most add ons appear in "network locations" quite unsettling and confusing.
I tooked at the TC UP package and it shows what can be done, although I would only want maybe 1/3 of the components... I should spend more time figuring this out, but there is one thing that really irks me in TC and makes me use powerdesk regularly, and that is: sorting never applies to directories. Never has. WHY???
Anyway, I have started trying a few others, although it seems to me none of them do the basics (browse, copy) as fast and efficiently as I can get them done in TC - I dont want to drag-and-drop files, reaching for the mouse is slow :S