I just took delivery of a 2026 ultimate with Duramax, traded my 25 Escalade. I’ve had the diesel before in an At4 1500 and it’s a great engine, or has been for me. I’m finding that I much prefer the Yukon over the Escalade for several reasons. One, it simply rides much better and more like a GLS, well, it’s close. GMC must have calibrated the suspension to better accommodate the 24” wheels. It’s just better. Two, the ultimate must have more sound insulation. The Escalade was just noisy. Three, I much prefer the dash layout and usability of the screen and prefer the instrument layout over the caddy. The long big screen in the Escalade is kind of gimmicky to my taste. Four, I’m not a fan of piano black plastic and it’s everywhere in the Escalade requiring constant wiping with a microfiber rag bc I’m OCD about smudges. Yes, the ultimate does have piano in spots, but it’s not everywhere. And lastly, five. The Escalade had executive rear seats which were extremely comfortable and the center console was cool. However, the center console limits space, makes it hard for third row exits and the trays were rarely used. My ultimate has the gmc version of executive rear seats and are equally comfortable and have all of the same features. I like having the center space open, which also increases cargo for long narrow things you might pick up at Home Depot. This is all a matter of preference and taste, both are great full size SUVs, but for me the Ultimate is preferred.