Our varieties are chosen for flavor. In addition, each has its own special talent or trait that you may want--disease resistance, ripening time, heat resistance, cold resistance, low-light tolerance, etc.  They are listed in order of ripening--within their category. (All slicers, early to late, then all  cherries, early to late.)  I recommend growing an early, a main crop, and a late tomato to have a dependable supply all summer.  I have noted which tomatoes do well in especially cool or hot climates.