What is availabe to offer within Cpanel depends upon what is available with the WHM. Presuming we are referring to Resellers and their WHM, this is what I found to be good for both, Server Admin and Reseller.
Normally, within the Reseller Center & Edit Reseller Privileges/Nameservers, I base their limits on Resource Usage and do not include or allow, the following:
Allow Creation of Packages with Unlimited Diskspace (new)
Allow Creation of Packages with Unlimited Features (ie. unlimited pop accounts) (new)
All Features (warning: root access)
Allow Creation of Packages with Shell Access
Rearrange Accounts (used to free up disk space)
Turn an account into a demo account
This means the checkbox is left blank for all of the above and checked off for everything else.
In their &Resource& allocation, I then setup their &Max Allowed& and allow &Overselling Allowed& -- the overselling allows their WHM to show &Web Space and Data Transfer& allotments (available & used) more correctly.
This I have found works well for myself while still providing Resellers with lots of options.
Your milage may vary.