It is neat that C# has some standard macros defined. It would be nicer if it was more explicit what is going on behind the scenes. I would love to see the equivalent of c-macro-expand. [0]

Also, although it is possible to extend C# using stuff like custom linq providers, [1] I still prefer lisp style macros.

[0] http://www.linuxjournal.com/article/2821 [1] http://msdn.microsoft.com/en-us/library/bb546158.aspx