We are running both Kubota and Deere loaders in my construction company.
Both are good I would pick the Kubota it drives a little smoother in my opinion but only if I were the only operator or if I knew the other driver was paying attention to maintenance needs and fluid levels. If you have several drivers like I do who are going to jump on and not check fluids or grease zerks and keep running it with warning lights on etc. go with the Deere because not that one is tougher than the other but when they do go down the Deere has been cheaper to fix in my experience. All my kubota repairs have been due to neglect operators that should have been prevented.