We went round and round on the upright versus chest style in our house too. My wife won and we ended up with the upright. She is short, so getting into the chest style bottom was the issue for her. For me, the energy use was the thing, but it is what it is.
We shopped based on the features we had to have (in our case was in a certian size range, had a sliding basket on the bottom shelf, and was a manual defrost unit), and then narrowed down the models that way. It ended up being a short list - two to be exact. Nobody had what we wanted in stock and we ordered it online, which was then delivered by a local appliance store at no cost. Worked out just fine, and we like the unit we got (it is a GE if that matters...)