{

Although it seems to be a little disagreement over the existence of beautiful code, a refactor I did today was pleasant to my eye.

Starting with:

string result;
if (parameterLessCommands.Contains(commandName))
{
    result = RunArglessCommand(user, commandName);
}
else {
    string commandArg = RetrievePairCommandArg(commandData);
    result = RunArgCommand(user, commandName, commandArg);
}
return result;

Ending with:

return
(parameterLessCommands.Contains(commandName)) ?
            RunArglessCommand(user, commandName) :
            RunArgCommand(user, commandName,
RetrievePairCommandArg(commandName));   

I'll take it. ()?: is your friend!

}