2009/9/7 Ray Rashif <schivmeister@gmail.com>
JFS is low-latency, low-power, and all-around performer. As such, it suits a mobile platform with 5400RPM disks.

Oops, forgot to continue:

For speedier and larger disks, ext3/4. Both XFS and ReiserFS have their cons. Google and you'll land upon a pretty old review, but JFS and EXT3 come up ahead of the others.