I'll admit that I'm a BIG fan of Whit's custard. I like softer ice cream, and theirs suits my taste perfectly.
I've been half a dozen times already, and get either the Luscious Lake Norman (with pecans) or Oh Henry (with peanuts). Both have hot caramel and hot fudge. Yum! Their sundaes are my favorite--since I really like to separate my bits of the caramel and fudge--but the Whitser is good if you like everything mixed together.
There are several size options, and I've found the mini to be just the perfect size for me. And it's less than $4, so what a deal for a sundae!