Windows files copy

RoboCopy (part of Resource Kit 2003) - console only, multithread mode with /MT:nn (1< n >128) - very good tool - mirror option, logging, retry N and so one. Full list of avialable options HERE
RichCopy - simple but with GUI. Nothing special, just doing his job well
vXCopy - simple and light. Max threads = 15
native utility xcopy - /c (continue if error) /z (restartable mode via Network), ACL/NFTS permissions aware- sux coz only 1 thread. Good for scripting
copy - native for cmd shell. Missing (or tricky)  ability to copy entire subdirectories