This list have been configured according to this post I voted for CrystalXP. - Flyakite: Mark: 7/10 The Good: Advanced replacements/Lots of extras/Good installer&unistaller/Updates The Bad: Little sense of incompleteness/Poor AVIs (Default MacOS X) - Gartoon: Mark: 5/10 The Good: Funny icons and AVIs design The Bad: Sense of incompleteness/No extras/Intermediate replacements - Longhorn Transformation Pack: Mark:4/10 The Good: Good installer/Lots of extras The Bad: I don't like any feature included (icons, styles, logon...)/Bad unistaller - Pastels: Mark: 6/10 The Good: Marvilla's icons are really beautiful The Bad: No extras/Sense of incompleteness/Basic replacements - CrystalXP: Mark: 8/10 The Good: Advanced replacements/Everaldo's icons are simply awesome/Good AVIs and BMPs/Lots of extras/Good installer&unistaller/Updates The Bad: Little sense of incompleteness/That penguin everywhere... - The Last Order: Mark: 4/10 The Good: High quality icons The Bad: Basic replacements/High sense of incompleteness (the author himself refers to it as a "mini-shell pack") - Serenity: Mark: 2/10 The Good: ? The Bad: Incomplete/I don't like the icon design Obviously, all expressed above are my personal opinions. C'mon guys, vote!.