Need advise on tow vehicle 3500 or 3500 dually

Transamz9 The 5500 does not come in the Longhorn trim. Nor does it come with a sun roof. I do like my comfort. In have previously owned a 2012 Laramie dually and a 2003 srw Laramie, both excellent trucks. As far as towing heavy the dually is superior to a srw. The 5500 has similar tow ratings only with a 4:88 and yes payload is twice as much. The downside is that the 5500 rides like the truck it is. The fuel mileage will be far less then my truck with the 4:10. The post was in ref to srw vs drw and after towing lots of miles with both the drw does a better job.