Overall reiser4 seems to win it, although the results are not weighed. In most cases, reiser4 does a pretty good job. When it comes to copying lots of small files, reiser4 is very fast, especially compared to xfs, end even more to compared to jfs.
It seems that, apart from all other features, users of reiserfs 3 will gain lots of speed when upgrading to reiser4. Running the benchmarks on a spare disk was a very good idea.