Hybrids are better: Like corn, beets are getting sweeter every year. While Detroit Dark Red and Early Wonder are still available, the new hybrids are sweeter and more reliable in the home garden. Red Ace, Big Red, Pacemaker III, Warrior, Avenger are examples of these improved varieties.
For greens: For best greens, plant Lutz green leaf, Crosby Green Top, Cut and Come Again.
Good Source of Info On Beet Varieties
For excellent info on the best beet varieties by state go to the vegetable variety data collection project at Cornell University - www.vegvariety.cce.cornell.edu. We urge you to join this valuable site and contribute your own ratings of varieties.