Here my own "Index". It's called "Programming Language Problem Index" PLPI.
Transparent to everyone. Just enter "JAVA Problem","Delphi Problem",'C++ Problem","C# Problem" at google and then sort the results
Java Problem = 341’000’000
Delphi Problem = 27’400’000
C++ Problem = 104’000’000
C# Problem = 113’000’000
Free Pascal Problem = 24’100’000
If you want to have less problems, then the situation is clear:
1.) Free Pascal
2.) Delphi
3.) C++
4.) C#
5.) Java
Don't take this too serious, but it's almost the same as TIOBE