I know this is an older thread, but I have my thoughts on it.
MY previous truck was a 16 Colorado Z71 Ext Cab. I have it for almost 4 years, and I just never fell in love with it...I disliked it completely.
I really liked the looks of the new GMC Elevation model double Cab, but the one I wanted local got sold before I had the funds. Not much else around. I had to look at the Silverado RST Double, almost pulled the trigger on a silver 5.3 with leather, Z71, Bose, etc, but with the 8 speed. Both Chevy and GMC had bad rides on rough roads to the point the front wheels fluttered or bounce on rough road. MSRP was 51, and was gonna cost me 21 and truck with rebates and discounts.
I was never a RAM fan, but they grew on me. I drove a Quad Cab Sport Edition with Chrome wheels, Level 2 opt, Hemi, Moonroof, and 12 inch display. I immediately noticed the difference in pull away smoothness, ride smoothness, and quiet. It completely felt like a much tighter vehicle, and it also had more style compared to the slab sided GM twins. The GMC looks better (to me) by leaps and bounds over that awful fuggly front end on the chevy.
So yes- hey both have their sporadic quality issues here and there, but overall- I felt so much better driving the RAM.
Chris