I HIGHLY recommend the Strawberry Rhubarb Crisp flavor if it is in season (summer).
I make an effort to find good ice cream in each town I visit and the summer seasonal Strawberry Rhubarb Crisp at Mitchell's is easily in my top 3 favorite ice cream of all time. Vanilla bean ice cream (thank god it's not just plain vanilla), local strawberry and rhubarb, and homemade crisp.
Recommend you to get this flavor without any toppings, it's already perfectly balanced in texture and flavor.