These are vehicles that are made by two different brands. They are known to be mid-sized SUVs but they do have some differences that will allow you to choose one over the other. The traverse comes with two types of engine and the Arcadia can offer two types of the engine too. The traverse will come with seven trim levels while the Arcadia will have four.
The more high-end the trim level is the more advanced features that you will get. You can decide on which one you will get based not only on the trim levels but also on the budget that you have set to purchase the vehicle that you want.