As a former Titan owner I can tell you the Springdale is a better choice. You will be a lot more comfortable towing with that weight. We had a 28 foot Dutchmen that the Titan handled great and had the same or similar weights as the Springdale. You have a capable truck that will perform well in flat to moderately hilly terrain. Mine was not the Big tow but handled the mountains of north Georgia well. I don't think I would try the higher steeper grades of the upper Apalachins or the Rockies, but have seen some Titan owners that have. I would still have the Titan if it would have had the payload for a fifth wheel.
It was a great truck