I was back in forth between Kubota and Kioti before I bought mine too. In the end, the Kioti was more powerful, cheaper, better warranty and more comfortable (better suspension seat, fender mounted loader joystick, more foot room, easier steering, more precise 3pt adjustment, smoother HST, etc...). Dealer support was about the same but that means very little to me since I can do my own oil changes. 4 years and over 400 hours later, it's only been to the dealer ONCE and that was for the free 50-hour fluid change.
The Kubota camp likes to boast about resale value but when you pay $3k-4k more up front then getting $3-4k more when you sell it makes no difference at all...