Which of the following CLI commands is best to use for getting a quick look...

The cpview command in Gaia provides a real-time, comprehensive view of the system’s performance metrics, including CPU usage, memory utilization, and network statistics. This makes it the best choice for quickly assessing the performance of a Check Point appliance. Other commands like fw stat and fw monitor are more focused on firewall statistics and traffic monitoring, respectively. cphaprob stat is used for High Availability status checks, not general performance metrics.