The Curly Braces are nice (if used properly with indentation) as it can show and definite end and Beginning to a group of code loop, if-then clause, etc... Also the semi-colons show a definite end of line. This is very necessary in C, because some coders like to create obfuscated C code (there are competitions).

The main strength that Visual Basic had over C is the ease of creating GUI objects. Of course with the creation of C#, this strength is now mute. The main strength that C and now C# has over Visual Basic is Bit Wise manipulations of registers.

I personally believe in being an expert in C# mainly for the power in C# that is not available in Visual Basic and C # (or C) is very similar to several other Languages. But, as a developer it is of course good to be fairly familiar with Visual Basic, mainly for the ability to modify Office in VBA. Plus, I'm not going to argue too hard with a client over what language they want the code to be written in.