Handling
With their comparable turning radii, the Chevrolet Avalanche 1500 and the Dodge Ram 3500 definitely handle about the same into and out of tight spots.
Drivetrain
The Chevrolet Avalanche 1500's engine is considerably smaller than the Dodge Ram 3500's. Remember that a smaller engine usually has to work a little harder; however, smaller engines typically get better gas mileage.
The Chevrolet could learn a lesson or two from the Ram 3500 when it comes to pickup.
Utility
The Dodge Ram 3500 is likely a better choice than the Chevrolet with respect to transporting cargo, especially if you often need to carry a lot of equipment or large pets.
Drivers with frequent kid-duty might favor the Dodge Ram 3500 over the Chevrolet Avalanche 1500.
Towing is considerably more the Dodge Ram 3500's forte than it is the Chevrolet Avalanche 1500's.
Comfort
While the front cabin in the Chevrolet Avalanche 1500 offers a bit more head room than the Ram 3500, there frankly isn't much of a difference.
While the rear of the Dodge Ram 3500 provides a bit more head- and leg-room than the Chevrolet Avalanche 1500, there really isn't much of a difference.
Dimensions
The Dodge Ram 3500 is considerably heavier than the Chevrolet Avalanche 1500.
The Chevrolet Avalanche 1500's tank is approximately the same size as the Dodge Ram 3500's, though the Dodge Ram 3500's is slightly bigger.
The Chevrolet Avalanche 1500 and the Dodge compete for the same parking spaces.
The Chevrolet Avalanche 1500's shorter wheelbase will give a sprier feel in daily traffic. On the other hand, the Ram 3500 is likely to have a smoother, more stable ride.
Cost
The Dodge Ram 3500 isn't much pricier than the Chevrolet Avalanche 1500 with respect to MSRP.
Warranty
The Chevrolet Avalanche 1500 and the Dodge Ram 3500 have the same basic after-sale protection.