What modules should we include in this package

My 2cents for D6/7 versions

Pathauto - Make paths easier to read
CCK (D6) - use it all the time in D6, core in D7
Token - Hand in hand with pathauto
Admin - UX improvement
Advanced help - Better help sections from modules that support it
Chaos tool suite (ctools) - Requirement of a lot of other modules
Coder - Helps teach developers to write better code
Coder Tough Love - Helps teach developers the hard way
Context - core in D8, much better implementation of blocks at minimum
Devel - necessary for developers
Features - critical to the foundation of our group
Hidden Nodes - corrects how you'd expect publish/unpublish to function
Module Filter - nice UX thing
Views - use it all the time
String Overrides - alter language to better fit your use-case without hacking core