[alelefant]

Jon Skeet's answer about "string vs String" on Stack Overflow was particularly interesting: http://stackoverflow.com/a/215422/190750.

[brudgers]

Skeet's answer points out that the alias is required in enums...i.e. there is a difference.

Direct link to Skeet's answer: http://stackoverflow.com/a/215422

[dtech]

A difference which is relevant approximately 0% of the time.

[brudgers]

How about in response to a lousy interview question?