There are almost 11 months from when i started to use Defensio and Mollom side by side on this blog to protect it from spam comments. And here are some results:

Total spam records: 747

Defensio:
  • spam - 740
  • not spam - 7

Mollom:
  • ham - 49
  • spam - 24
  • unsure - 389
  • no answer - 285

Note that i use the free version of Mollom so it does not provide any guarantees on performance and that may be the reason for 285 of the "no answers" from their server.

Still, based on this results i would say that for my particular blog Defensio got to be a MUCH better spam filter.

Did anyone else used any of this 2 or any other solutions and have results to share?

UPDATE: What i REALLY like about Mollom is how willing are they to help. So was when i was creating the plugin and so is now when they contacted me in order to find out what/where the issue may be and to help me to improve the plugin if/where needed or to give advices how better to use returned results. Way to go guys!!!