Ok, I know this has be asked before but I don't think my exact question.
I started a new garden this year, so lots of garden soil and nutrients added.
I planted 6 tomato plants from Burpee, 3 tomando and 3 brandywine.
The 3 tomando plants have tons of tomatoes (30 + each) and are about 4 ft tall. I did nothing but plant the things and tie them up as they grew. No pulling off suckers or leaves. Two of the brandywines are about 5 1/2 ft tall and have a dozen or so tomatoes, way fewer than the tomando. The 3rd brandywine is about 7 1/2 ft tall but only has 2 tomatoes. Again I did nothing but stick them in the ground, water, weed and support. This 3rd plant is right next to the other 2 and right next to the 3 tomando, so it gets the same light, soil, water, bugs, wind, etc.