Hey, welcome to TBN.
I've checked out both of these machines, and personally, I prefer the TC33D. Remember, it's a personal preference. I find that the pedals on the Kubota seem to sit too high for me and it's uncomfortable moving my foot back and forth.
There are a number of other factors that may determine your ultimate selection. A $1,200.00 is a lot of money. And a lot of guys will tell you that you can buy a couple extra implements with that money. This is true. But if money isn't the driving force behind your selection, then ask yourself which dealer you're the most comfortable with. Do have a better feeling for one over the other? Is one located more conveniently to you than the other? I'm convinced that except for the money side of it, how you feel about the dealer and the kind of support you'll get after you purchase is the second most important consideration in buying. Any of the big 3 manufacturers are good machines.
Running a close third (some would say it's more important) is how does the tractor feel for you. Are you comfortable with how it fits you? Do all of the controls feel like they're in the right place? Remember, you're going to be spending a lot of time (hopefully) in the seat. You want something that feels good to you. Try them out. Most dealers will let you operate them in the yard, and some dealers will even bring one out to you for you to try at your location.
Turf tires are intended for lawn work. They provide a wider footprint on the ground, thus reducing the chance of scuffing the yard. They can get plugged with mud and slip fairly easily. They are also more susceptible to punctures than the industrials are. I would think if the vast majority of work will be on grass, the turfs would be what you would want.
Both the belly mower and the 3pt mower have their places. Traditional wisdom seems to say that the belly mower gives a better cut. But it also reduces your undercarriage clearances, which can be a problem if you're doing landscaping work or a lot of loader work. The 3pt rear discharge can cut close to obstacles on either side, just like the belly mower. It can be taken off and put back on easier than the belly mower, but you can't get into real tight places with the 3pt mower hanging off the back, and you have to be aware of what it does when you make your turns (swings in as you swing out).
If you do some searches for these various topics, you'll find a ton of information out there. Your questions have been asked and answered any number of times in the past.
Good luck in your decision making process. Make sure you let us know what you decide to get! /w3tcompact/icons/smile.gif