Many logfile analzer collect statistic data and shows it as a numbers. This says me not enough. I will see, where someone comes, how long he reads and where he goes. An this as a path or a tree. I will a picture, not numbers.
WebPyWay is a cgi python script which reads apaches combined log format and shows a list of user IPs in the first step and shows requests for given IP from this logfile. It creates a dot file, runs graphviz and - if you wish - makes also a map file for server sided imagemaps. You can see a tree and click on each request on this picture to go there.