i always find reiser to be less stable (or less useful) than ext3. i suspect this is because you can mount ext3 as an old ext2 filesystem for the purpose of recovery disks etc. if you use aknoppix CD as your recovery disk, this isn'taproblem but i still use tomsrtbt which doesn't support reiserfs, and i simply stick with ext3 because it works and i understand how it works as much as i need to.