If you are traveling with children Jamaica has a playground and Aruba does not. I have stayed in both of these locations before and of course I can't make up my mind which I like better! I think you would be fine in whichever one you want there is really no big difference in the end your proximity to everything will be determined by your building number. The last time I sayted in Aruba I was in Building 56 (room 5656) which was close to the bus stop, but further away from Old Port Royale. I just stayed in Jamaica in October and was in Building 42 (4250) closer to Old Port Royale just a little further to the bus. I hope you enjoy your stay.