1. http://www.fantasticcontraption.com/?levelId=579 (twice as popular as #2)
2. http://www.fantasticcontraption.com/?levelId=16931 (twice as popular as #3)
3. http://www.fantasticcontraption.com/?levelId=10116
4. http://www.fantasticcontraption.com/?levelId=7454
5. http://www.fantasticcontraption.com/?levelId=3024
6. http://www.fantasticcontraption.com/?levelId=5585
7. http://www.fantasticcontraption.com/?levelId=2341
8. http://www.fantasticcontraption.com/?levelId=14766
9. http://www.fantasticcontraption.com/?levelId=475
10. http://www.fantasticcontraption.com/?levelId=1744
All other levels are pretty much tied with 5 or 6 others so I'll stop there.
