I noticed there are more processes with the Cloud-3 platform over the MVPS-4. My MVPS-4 had around 80 processes where my Cloud-3 has around 185. I also noticed a bit more RAM usage with the Cloud platform compared to the MVPS with the same Plugins/Websites. Overall I am happier with the Cloud-3...
I have 4 WordPress sites running and they work fine with Litespeed without any issues. They actually load faster too!