The beauty of LINQ lambda's

gistfile1.cs

var names = new[] { "Bill", "Bill", "Bob", "Mary", "Bartholomew", "Shane", "Elisabeth", "Dave", "Bartholomew" };

var query = names.Distinct()
                 .Where(n => n.Length > 6)
                 .OrderByDescending(n => n)
                 .ToArray();

// result: { "Elisabeth", "Bartholomew" }