I recommend One Identity’s Syslog-ng™ Premium Edition because it is a mature product with proven success, has some of the best documentation, is continually being developed, and has a rich feature set.
syslog-ng™ Premium Edition gives DataPath the solution to transmit system logs over its networks while maintaining compliance with regulations which govern the healthcare and credit card industry, such as the Health Insurance Portability and Accountability Act (HIPAA) and the Payment Card Industry Data Security Standard (PCI-DSS)