What goes in which greenhouse?

For several years I've had a small (6'x4') greenhouse on a concrete base, in which I grow stuff in pots. Now I have another, same size, on the garden soil. Which greenhouse crops will benefit most from being in the new house and planted in the soil and which will cope best in pots? the greenhouse on concrete also gets more light and heat, as it is traditional glass and the other one has greenish plastic cover. Ideas please...