In short my recommendation is to use ReiserFS if you are creating a new
file system and EXT3 if you want to retain your existing ext2 file systems.
However, I had some problems with ReiserFS which I summarize below:
First, this was on a laptop that had (as I later discovered) a bad memory
module.
I discovered that my ReiserFS was corrupted and could not be repaired when
the file system (eg. root) was mounted. The solution to boot from the
rescue Cd was not possible because of a problem with the removable CD drive
(the CD and floppy were together in a removable "wedge"). I eventually
fixed the CD, booted and was able to repair the file system.
--
Jerry Feldman