Comparing of Snort and Suricata is one of the more interesting topics in Cyber security. At a glance Suricata is more resource intensive than Snort.
It seems Snort 3.0 is an updated version of the Snort 2.X that results in better efficacy, performance, scalability, reusability and extensibility but in compare to Suricata, Suricata is Higher performant and resource consume less.
In other hand Snort rules and Snort Community & Blog are powerful than Suricata.