Buy whichever one you like the most. Drive it. Enjoy it. If it gives you trouble? Trade it..
On the term "Loaded". I worked dealerships for 6yrs. As I understood it, loaded meant the car was so full of options and accessories that you could either haul you and a full tank of gas or a 1/4 tank and a friend. Which brings us full circle to the 2500 vs 3500 debate.
Payload!
Went to RV show with daughter and her hubby last weekend. He says we want a 5th wheel, my "loaded" F150 will tow 14k! Oh really, Lol, what's your payload rating? Payload? Whats that?
They should be teaching this in home economics! If that still existed...