You missed a lot. I recently replaced the old Downloads system with an entirely new software that addresses every complaint about the old system. The stats are still there, just better organized. Click view stats on the main download page and you'll see them.
For whatever reason most downloads isn't kept on the Download stats... and no, I can't do anything about that. However, if you go to the list of files for a given section (ex. OpenBOR modules), you'll see one of the table entries is number of Downloads. Since you can sort the table by any entry in ascending or descending order, it's easy enough to see the top downloaded modules.