I usually plant 60-70 tomato plants, a couple dozen Heartlands, half a dozen Better Boys (early in Walls-o-Water) and the remainder in Romas or San Marzanos. I've experimented with a couple of heirlooms and haven't had much luck, but I may try those Cherokee Purples this year. The Heartlands are a container variety, but for whatever reason, in my clay soil, nothing can beat their taste.
Last year we had a phenomenal season with tomatoes, probably because we had a dry May and June. The Romas averaged 4" in length and we put up tons of them, canned, frozen and in salsa. Also, we didn't have a single Mexican Bean Beetle in the green beans. Usually I have to resort to chemicals in August or they'll completely destroy the crop.