My favorite flavor Jell-o is either raspberry or cherry, I can't decide. This dessert is so easy and really cheap, that it don't matter what flavor Jello you use. I also like the shortbread crust with a twist: brown sugar! And it's fancy enough for company and cheap and easy enough for a Monday night dinner dessert. I guess that's why it's one of my favorite desserts. See my notes at the bottom about making this recipe diabetic friendly.