I would recommend Kubota. We run M110X and 6-141. Both been very good. Kubota has powershift and the case does not. Rancher friend of mine had a Farmall for a winter - kind of. He put more hours on the loaner than the Farmall. Case traded him out of it after just one winter. Broke front axle which caused tire to tear off hood and rad - out for 2 months for parts. Had it home 2 weeks, lost the turbo. Shortly after that hydraulic pump piled up.
The GX is my preferred Kubota. Has the nicer cab and 3 speed ranges and no DEF. Keep in mind the Kubota is open center hydraulics whereas your 6410 is closed center. If you plan to run a hydraulic drive rockpicker or anything else needing continuous oil flow then the Kubota (and Farmall) are wrong choice. PTO rockpicker then you are mint.