Using find gives you the most flexibility in file or directory searches.

Lets say you run a virtual hosting server, and want to find mail files larger than 500k, you could do this:

• find /home/virtual/site*/fst/var/spool/mail/* -size +500k -type f -exec du -s {} \; | sort -n | awk '{print "du -hs "$2}' > /tmp/du.cmd && bash /tmp/du.cmd

• find /home/virtual/site*/fst/var/spool/mail/* -type f -exec du -s {} \; | sort -n | awk '$1 >= 500 {print "du -hs "$2}' > /tmp/du.cmd && bash /tmp/du.cmd

• find /home/*/mail -type d -exec du -s {} \; | sort -n | awk '{print "du -hs "$2}' > /tmp/du.cmd && bash /tmp/du.cmd
• find /var/www/html -type d -exec du -s {} \; | sort -n | awk '{print "du -hs "$2}' > /tmp/du.cmd && bash /tmp/du.cmd

Is it long? Yes. Is it versitile? I think so.