This poll is closed, but here are the results of KDnuggets 2012 Poll:
This is the largest KDnuggets poll ever (in the number of options), reflecting the growth in options and alternatives.
2011 KDnuggets Poll: Data Mining/Analytic Tools Used
where the top 5 tools were:
- RapidMiner
- R
- Excel
- SAS
- Your own code