Ah yes, great minds and all that
BraveSirRobbin is the one I'm using at the moment. The least tolerant of php version and add ons etc. works out of the box which is good, too many geeks running on the nth version of PHP class functions etc.
Ive got some durable queues and several workers consuming the messages. No high msg consumption, just de coupling jobs like sending live stats to customers who you can't count on to have their services up 24/7 and I dont want them to hang my procs on posting them.
I'm more into the atomic message/job at present rather than the logging although have managed to see about 1K/sec messaging as part of our testing using Jmeter just in case we ever get past our current 12 billing messages per sec.
glad to see someone else into the messaging server bit as well.