I just bought the Dannmar based on my neighbor owning one for the last 3 years and he loves it. He bought the ACX but wished he would have bought the CX so that is what I got. Not fully assembled yet so I can't comment for myself but hopefully the next couple days.
I have the Atlas 10,000 extra wide extra tall. Very satisfied. Lifts my Dodge quad cab 4x4 diesel no problem. The extra wide makes it a whole lot easier getting in and out of the vehicle. Well worth the extra money if you have the room.
I have a Mohawk System 1 10k capacity. ALI certified which means it will lift 15k pounds. The Mohawks are the best. No hoses or plastic parts and 100% American made.All steel is either 1/2 or 3/4". Warranty is 25 yrs. Its the only lift the Gov't buys. Most are used in municipal garages.The baseplates alone are 20 x 30"