This is completely based on need and license type and budget available Both RIT and CA has their in depth support on protocols and advanced way of creating virtual asset. I am not expert user of RIT but I understood RIT is has great support for Tibco and webmethods…

The opinion I mentioned here is about CAI. I don't understand what exactly you want to know here about only MQ.. can you drop what exactly you want to know to stand out ? I am experienced in multiple tools, I can try to answer my best !