SurfStats
SurfStats Log Analyzer generates more than 50 reports which provides all you need to know about your site's visitors and the content they were interested in.

SmarterStats
Over 130 Report Items, plus Geographic Reporting, Standard Reports for Marketing Departments, CEO's, and Webmasters, Interactive Reports that allow you true data mining, Custom Designed Reports, System Administration unlike any other log analysis product on the market, and more.

DynaTracker
Track, analyze and test all of your online marketing campaigns automatically, in real-time -- on YOUR server. DynaTracker will tell you exactly which advertising methods are working and which are not. Track clicks from pay-per-click search engines, e-zine ads, classified ads, link exchanges, newsgroups, bulk e-mail, e-books, autoresponders and more.

Summary Log Analysis Software
With over 150 reports, many of them unique, Summary gives the information you need to know about your website's visitors, page views, bandwidth usage, problems, and on and on. Summary runs on all of the popular systems including Windows, Macintosh, Linux x86, and Sun SPARC. (I use this as my stats program. It's only $59. Great deal!)