I personally have always been a fan of EpicBot. In the past I helped them fix any sort of code that was wrong in their bot via being an active bug reporter.
With that said, there were many times where I found myself getting viruses and Trojans (Of which were NOT false positives upon examination).
If I had to choose one currently, I'd say RSBuddy simply because they're clean, helpful, and well coded.
nice, thanks for the release bro
oh did it work?
RSBuddy: Great.