JD and Kubota are the most expensive. There is no available data on quality, so it basically comes down to marketing and confirmation bias. Those who own those brands are 100% sure the quality is better because they paid more and to think otherwise would mean they may have erred. Normal human approach, but in the small tractor market you are buying features and dealers. JD and Kubota have more dealers, but you only need one.
There are about a dozen CUT brands in the US (not counting 'store brands'). In no particular order: JD, Kubota. Kioti, LS, TYM, Branson, Mahindra, Yanmar. CaseIH, New Holland, Zetor, and Massey Ferguson. Bobcat (Kioti), Bad Boy (Branson), and RK (TYM) are the major rebranded labels.
Any of these will be the best if you get the best value and dealer support. Any of these will be the worst if you dont.