anyone at least think that with 4.56 id feel some type of difference over stock auto with 33s?
Sure you will feel a difference, you are changing from 3.73 to 4.56 after all. Go ahead and get 4.56, is that what you want to hear?
You will feel a difference with the 4.56. But will you have the performance and mileage as good as you would with 4.88, highly unlikely. The vast majority here are telling you it's more worthwhile, in time AND money, to go with the 4.88. Yet you're stuck on 4.56. Do what you want, get the 4.56