To the OP, you mentioned in your post that the main reason you were looking for a truck to replace your Armada was because you want a bigger trailer. As you've probably realized, the capability of a 150/1500 pickup is only incrementally better than your Armada. It sounds like you still would prefer an SUV. The Ford Expedition EL with the HD towing package offers similar payload and towing to most (but not all) pickups in the 150/1500 segment and arguably the best-performing towing engine in the segment.