SortSample.cs

class Program
{
    static void Main(string[] args)
    {
        List<Player> foo = new List<Player>
        {
            new Player(100, "Miku"),
            new Player(350, "Ren"),
            new Player(700, "Yukarin"),
            new Player(3500, "IA")
        };

        var sortedByHp = foo.OrderBy(e => e.hp); //sort hp
        var sortedByName = foo.OrderBy(e => e.name); //sort name

        sortedByHp.ToList().ForEach(x => Console.WriteLine(x.hp)); //show
        sortedByName.ToList().ForEach(x => Console.WriteLine(x.name)); //show
    }
}

class Player
{
    public int hp;
    public string name;

    public Player(int hp, string name)
    {
        this.hp = hp;
        this.name = name;
    }
}