I ran Older Dixies for about 5 years a decade ago. Solid build then, don't know how they've held up. Know nothing about Spartan other than they look like a sales gimmick, with their Nascar endorsement, believe they are designed by the bad boy guys? So mid level box brand stuff. Kubota is the most overbuilt machine I ever ran. Had to rent one to finish a day when a weld broke on my Wright. 3 cylinder inline motor, blades about half an inch thick. I was mowing in the dark trying to catch up on a lawn I know very well, but didn't see the metal fencepost the owner had knocked into the ground. Cut a steel post into 3 pieces without so much as nicking a blade. I would have felt comfortable brushcutting a forsithea hedge with that monster. But I would never put something that heavy on my lawns week after week. Almost twice the weight of my usual mower. I would give them a serious look though for a smaller machine, the build quality is there.