I would tier list them as following:
S tier: Vanilla, Cookie Dough, Cookies N Cream, Chocolate with Sprinkles, Neapolitan (without strawberry)
A tier: Plain Chocolate, Cake, French Vanilla
B: Peanut Butter, Lemon
C: Caramel, Waffle Cones, Rocky Road, Fudge
D: Neapolitan (with strawberry)
F: Peppermint, Strawberry