The Ram has made a lot of progress in terms of interior comfort and refinement. However, the underlying platform is still a truck, not all that different from the Tundra's design. The 5.7l Hemi isn't a particularly refined or advanced engine either, certainly not compared to Toyota's 5.7l DOHC v8.
Arguably the Tundra still has a tangible advantage in terms of reliability....NHTSA-listed recalls and TSB's prove that.
Well, based on my sample of one of each, the Dodge has been more reliable than the Tundra, even though the Tundra is three years newer. Mileage similar on the two trucks. The Hemi 5.7 may not be "refined", but is is well proven and produces similar power to the Toy 5.7. The Toy may be more advanced, but it offers no practical, real world advantages over the Hemi. There have been more repairs required on my Tundra than on my Dodge. The Dodge is more comfortable than the Tundra for long trips, and even my friend with the newer TuRD Pro would rather ride in the Dodge when we do long hunting trips. The Tundra has a bigger cabin. The Dodge has a bigger bed. Pick your poison.