Currently, we use Wonderware to operate a test station that uses PLC's to perform switching and feeds back data from the test equipment.  However, we may be purchasing new equipment and/or upgrading old equipment, so we are considering switching software platforms.  I have been told that Labview is easy to use, less expensive, and is one of the more advanced programs.  We are currently using RSView on another piece of equipment and it seems fairly easy to use but we haven't done much with it.  All of our programs have been written by outside vendors.  The RSView, we have made small changes.  But, we don't have a Wonderware development license, so all changes have been funneled to the vendor.  We would like to be able to make small changes ourselves in the future.

Any thoughts?  What do you use in your facilities?  What are your likes/dislikes about the programs that you use?