This is a war that has been there for ages now. What’s the best, fastest, best performing language: Java or .NET ? Well I’m a fan of Microsoft so you’ll know where my vote goes to. But now Evans Data surveyed 350 developers at several major enterprises (1000+ employees) and the final result was that their .NET investments were growing faster then their Java projects. Which resulted in a demand for .NET developers.
You can read more in the following article: .NET Making Gains Against Java, Survey Says