Is it better to plant bush beans or pole beans?
Bush beans usually have a heavier yield over a shorter time period, which can be an advantage if you plan to can or otherwise preserve your beans. Once pole beans start producing, they will continue to produce in to the fall. True to their name, pole beans do need poles or some good means of support.
Also, there are many more varieties of bush beans compared to pole beans.
References – FS088E Growing Green Beans in Home Gardens and FS135E Growing Dry Beans in Home Gardens.