Favorite is Ghiradelli's, but for a dip of ice cream in a chocolate dipped waffle cone, not a sundae.
However, for a sundae - POP food court has a 3 dips (hand dipped, not soft serve), 3 toppings, whipped cream all over the place, nuts, sprinkles, & lots more toppings for $3.99 - 4.99. It's more than DH & I can split - now that's a yummy tummy ice cream day at a great price & the ice cream is a good quality!