My friend and colleague Melanie Webber says it all in her article about the pure deliciousness of sweet wines. I agree that they are often maligned and misunderstood, and she explains it all for you here, in her article From Nun to Nirvana: Dispelling Sweet Wine Myths and Putting the Sweet Back on Your Wine List! This is an informative and fun read, so make sure you read all three parts of this article!
Cheers!