Allegedly Cub Cadet (I own two, one ancient) is the top end line for MTD, but you could be just getting
different paint jobs on some models. Important to sit in it, drive it around their parking lot.
I personally can't drive a Zturn due to arthritis problems and if Cub Cadet had made a diesel steering wheel
z turn, I'd have bought one. MTD seems very serious about playing with the big boys in their top CC models, if you've seen
them in the dealerships. Beltzington, nice machine.
In your price range, warranty is important. Either one longer? Dealing with competent dealer is priority number one.
Another issue is whether the spindles are greasable or not. If you are careful and grease your own bearings, pretty likely those
spindles will last longer than sealed units. But even high end brands have gone to sealed spindles I'm thinking due to warranty costs
for folks who never grease their machines. Seal the spindles and they will last until the day after your warranty expires.
We all want the quality of a commercial mower at a residential price. So you look for the lower priced models (I'm old enough to have bought a number of new cars in your mower price range...) that have the best components.
I'd take a pressed deck over a fab deck any day if it cuts better. I have a fab deck on my CC LX2 with a Kawasaki engine. I loan that unit to a friend who mows near a beach and hits sandy areas, so there I wanted the thickest deck I could find for the price.
If it were me, when in doubt, based primarily on warranty, I'd buy the CC.
I bet it has better resale value too due to brand name recognition.
I also own a diesel JD garden tractor and a diesel Kubota F mower. Both have steering wheels.
If you want your wife to help you mow more often, get a steering wheel. Easier learning curve on controls and usually
a little better on hills.