Interestingly the Perl interpreter is written in C which is in essence a subset of C++ so whatever you can do in Perl you can also do in C and in C++. Actually all three languages are Turing complete so they can all do anything any of the others can do, at least in principle.
At the end of the day this sort of debate is silly because the different languages are designed for different purposes. At best you can say that for some particular problem or application domain one or other of the languages is better suited. There is however no overall "best" language.
Perl reduces RSI
- it saves typing