Purple Cherokee: They seem to have a cracking problem in my climate, so the whole top of the tomato is covered. But the tomato itself is excellent. I had some yesterday for dinner with a little mozzarella and basil. Yum.
German Queen: The tomatoes themselves are fine, but these tomato plants were the first to get disease, and once having gotten it, they seemed to give up entirely. Plus the cracking is even worse than with Purple Cherokee. Overall, not a good tomato for my garden and it gets replaced next year.
Pink Brandywine: Bueller? Bueller? I know this tomato isn't supposed to be a prolific setter, but 1 tomato when some of my others have produced 10-15 is a little ridiculous. I don't care how good the tomato is, it needs to produce more than THAT.
Lemon Boy: A hybrid. Nobody told this tomato it wasn't a cherry, and it sets like crazy. It is a decent tomato, sweeter and with less of an acid tang than Cherokee Purple (which seems weird for a plant called Lemon Boy.). I'll probably grow one of these next year because I like having different colored tomatoes, but I'll probably only get one. (Unless I find a yellow I like better.)
My cherries: I have 2 Super Sweet Million and Sungold and good gracious, with just those 3 I could have a tomato salad every day for lunch. I wasn't that impressed with the Sungold at first, but then I realized I was picking them too early. I picked when they were yellow, and they actually are best when they're more orange-gold. Now they are delicious. The Super Sweet Millions are a bit sweeter than your average cherry and they're real winners too. Great cherry tomatoes.
Generic red hybrid slicing tomato: It's some kind of hybrid--Better Boy, Big Girl, whatever (can't be bothered to go out and look at the tag). It looks great, hardly any cracking, uniform red color. It's not excellent as Cherokee Purple is, but still better than supermarket tomatoes. Plus they're very resistant to disease. I love the heirlooms, but there is something to be said for a good tasting, trouble free tomato.
So outside of Cherokee Purple I don't think any of the other heirlooms are coming back. Anyone have any suggestions for heirlooms they like that can stand up to the South's heat and humidity?