The year produced makes a good deal of difference.
The "pop top" later Genmar models were very different from the "straight top" Aquasport models. They look different and were made somewhat differently. There are advantages of each (according to legend, hearsay, and marina bar talk/lies
) - the later models had more features, were wired better (thanks Bob!) and were lighter - the earlier models are reputed to be more heavy-duty and robust.
Pick the one you like - there are few "bad" Aquasports out there! But I will tell you that few owners move down in size when they trade - so if you have a choice and all things are more or less equal - go for the bigger boat and the bigger power option - you may save yourself a change later...