Which version of C# are you thinking of?
In C# 3, the verbosity level is much less than in C# 2, where it's slightly less than C# 1.
I don't see where Ruby syntax is particularly more concise than C# 3's.
Well, let me clarify "particularly". I don't find myself feeling like I'm suffering under C#'s syntax, relative to Haskell's. It has about the same amount of syntactic overhead: writing types for method parameters, and when defining data structures. Occasionally I have to explicitly write a type parameter to a function.