一个调查结果（在下一个版本的VS/C#中你想要什么？）

Feature	Votes	Feature	Votes
Edit&Continue	31	Better constraints for generics	10
Better support for nesting other languages in C#	23	Warnings for certain goto behavior	8
Better control over all code generation.	23	Better syntax for casting	8
handling of null events	22	Better mock object support	8
Tuples/Generic lists of variable length	22	Better thread debugging	8
Covariant return types	20	Delegates on properties	7
Expose the compiler with a managed API	19	Generate field/property/constructor/class/etc.	7
intellisense for indexers/conversions	18	Fix up usings	7
tell you when you're using a disposable type unsafely	18	VI mode	6
Non-null types	17	Functions in module scope/Top level functions	6
C#=Vb	16	Better MSDN documentation	6
Error correction/spell checking	16	More flexible color schemes	6
Private backing store for properties	16	Better XML serializer	6
Automatic constructor stub generation:	15	Better support for chords/keybindings	6
Pre/postconditions	15	User filtered catch handlers	6
Static import of classes	14	Method scoped variables	6
support for checking enum values	14	VS macros in C#	5
const support	14	Find code duplication	5
Support for mixins	13	Read/Edit mode	5
Virtual operators/operators on interfaces/better operators	13	IntPtr operators	5
Nicer syntax for anonymous delegates	13	API For accesing the profiler from managed code	5
Expose the refactoring engine	12	No regions on interface implementation	5
inlined array syntax	12	Warnings for implicit vs explicit implementation	3
Managed Add-ins	12	Fix up doc comments when doing a refactoring	3
special constructs for asynchronous operation	12	Method virtual by default	3
Collapse all code comments	11	Support for method groups in doc comments	3
C-omega support	11	Expose formatting/colorization engine	3
Generic properties	11	Obfuscator Api	3
Attributes on local variables and code blocks	11	Simplified iterator syntax	3
Better control over completion list (sorting and filtering)	11	Schema for XML comments	3
First class generics	11	Global exception tracking	2
Better incremental find	10	More flexible interface implementation support	2
Better constraints for generics	10	Aspects	2

看来大家还是怀念VB中的调试时修改代码的功能
Aspects落在了最后，Eric Gunnerson对于C#和AOP提出了自己的看法

原文在这里