Hey amarks41,
My vote goes for the OEM/Factory Spring Seat,, it's a good seat in my opinion and is designed to fit the tractor. That's what I got with mine, and I wouldn't have a tractor, without a spring seat now. If I had the option for the Shuttle Shift, I would probably want that as well, but that was not an option for me.
For Light duty around the house, I think that you will like the 224. Mine is pulling a light duty 5' box blade and It is doing a good job for me. I intend to do all my grass cutting, augering, ditching and other utility chores around my place with the 224.
Have a nice day,
Joe