Right now Java has the following features that are absent in C#:
1) High performance VM
2) Code that does what it says without hidden conversions, text substitutions, and macros.
3) Other languages that are actually useful like Scala and Clojure.
You are obviously talking a lot of shit there. I can't give numbers about issue #1, but from experience they are at least equivalent for general use. And its not like if anyone couldn't just open 2 apps in their desktop and compare. Java may be faster here, slower there and vice versa. But you certainly won't find any huge differences in the runtime that makes one seem useless next to the other.
Now, about issues #2 and #3, you are probably smoking something.
What kind of hidden conversions or text substitutions you are talking about? As any language, there are *features* that change the behavior in some way. There are no hidden conversions, there are documented implicit and explicit casts, there is marshalling for interoperability with other platforms that are completely configurable. Any language has this kind of thing to some degree, even java. Also, NET itself have no notion of macros, because macros are a compiler feature, not a runtime one. C# for instance doesn't know what is a macro, it simply has some basic pre-compiler, but nothing like C. It seems you don't understand or don't care about learning how the language works, even though all the reference, compilers and SDK is freely available online. The fact that you can't understand a feature that any VB programmer understands really tells me you shouldn't be spreading shit about it.
As for saying that java has the advantage of having more useful languages than .NET, you must be out of your mind. Simply going from the standard languages that .NET supports out of the box (C#, VB.NET, C++, F#) you have 4x more languages than Java, and they are certainly useful. If you count the other languages that people have created or ported to the CLI, you can even count Java.
You are just a java fanboy that will defend any feature that java implements, and bash any other that java doesn't have, until the day it is implemented. You are no different from the fanboys that love LINQ or extension methods.
The fact is, Java has a lot of benefits over .NET, like *supported* multi-platform runtime from the official vendor, more libraries due to more time in the market, a more open community, etc. You could simply have used them in your argument instead of saying a lot of nonsense shit about stuff you don't want to understand.