Good ole vanilla! Or the rainbow sorbet.
Nothing like sitting on the deck (easier to clean up after drippy cones!!) on a hot day, with some little ones contentedly munching away at their mini-sized ice cream. I love the mini cones, as it seems to be just the right amount. I can pack it full for the bigger kids, or just a wee scoop for the smallest ones.
Personally I love mint-chocolate chip, but haven't found it to be a winner with the kids. I guess that means more for me?