The super autos are some of the biggest available at this time. I grew some Super Cali Haze outdoors last summer in 10 gallon pots that got to around 5' high and yielded almost 5 oz per plant. Sometimes it's more how they were grown than the particular strain. DWC (Deep Water Culture) growing is giving the biggest yields. Both SeymourBuds and Jackal have gotten huge yields using this method. If I remember correctly Seymour got around 10 oz. from a Think Different and Jackal, 9 oz. from an Onyx. Growing in a soil or soil less medium won't give those kinds of yields but 2-3 oz. per plant is achievable from most dwarf strains. A lot also depends on the phenotype you get. Autos, being relatively new, aren't fully stabilized and most strains will produce several different phenotypes. Runts, dwarfs and bushes being the most common. Where a runt of a given strain might only produce an oz. per plant, a bush may produce 3-4 oz. Generally, the sizes listed by the seed banks are fairly accurate for plants grown in soil or soil less mediums.