C# vs C++

I'm not looking to start some sort of fanboy arguement.

Is the ease in development brought by C# worth more than the power/speed of C++?

I'm writing a genetic algorithim so speed is pretty important.
I can't find any legit benchmark test so I'm lookin for oppinions here.

>>1
Is the ease in development brought by C# worth more than the power/speed of C++?
C++ has no power or speed. However, in reality, ease of development trumps both of those most of the time anyway.

But for a genetic algorithm, use C. Preferably C calls from a Foreign Function Interface of a higher level language.