someone should point out here that the Kubota is more physical tractor than the Deere. The 3pt lifts 600lbs more, and the 723 loader not only lifts about 300lbs more, but has all the functions that a loader valve should have like lift & curl, dump and lower, speed dump, etc,etc. The deere is just 4 positions plus float. The common complaints with the 3000 series Deere's is that the direct inject engines smoke, the hood flops around, they have a 1" driveline from the engine to tranny - Kubota, CNH, etc all use 2".
They are both good tractors, like as been said - drive them both and buy what feels better.