List(Of T) supports sorting through it’s Sort method.  When you call Sort it will use the default comparer for the items it contans.  So if you have a custom class in there, you need to implement IComparable or IComparable(Of T). 

Here is some code that shows how to do this.  This code sorts lowest to highest.

    Public Function CompareTo(ByVal other As CustomClass) As Integer Implements System.IComparable(Of CustomClass).CompareTo
        Dim myscore As Integer = Me.SomeValue
        Dim otherscore As Integer = other.SomeValue
        If myscore > otherscore Then
            Return 1
        ElseIf myscore = otherscore Then
            Return 0
        Else
            Return -1
        End If
    End Function