I wrote this tool to help me select the best steem node to use for a project I'm working on. The times displayed are the average latency and the score is calculated from a sum of all the median response times.
Running up here: https://bench.steem.vc
If you know a node I've missed I please let me know! Also if you have some idea on which RPC commands would be most relevant to test, these are the ones I'm currently using.
Share and enjoy!