I've been a GM guy all my life. I had a 2008 Chev2500HD, then a 2011 Chev2500HD diesel company trucks and loved them, putting about 30,000 miles on a year. Then about 3 years back we bought a Flex and like it! So last fall I had to buy a truck and decided on a 2015 Ram 2500 CTD. Verdict is still out, nothing wrong with it, love the sound of that Cummins and better fuel economy than the Chev diesels. I think the Chev rode a tiny bit better, maybe cause of slightly longer WB? The distance from front of box to wheelwell is probably the only thing that peevs me, as I cannot fit my 20" wide cargo box like I did on the Chev. As everyone says, all are good trucks, all depends what you like :) Happy shopping!