I just tried every single one on the list and the only one I liked was Directory Opus. The biggest con is that its too expensive so I went with Speedcommander as it was recommended by a few people here and Im sticking with this one. The only one thing I will miss about DOpus is that it replaces explorer completely.

At work, when moving files from DEV to TST to PRD and to various incarnations, a multi pane explorer is very useful which is why I'd want more than just a 2 pane one. Unfortunately there's that 6 pane thing but it's just downright ugly.