Kubota makes a small loader as well, and the co-instructor I work with, says a gravel pit where he pulls gravel from, has one, and it is really nice.
But BCS makes an articulated tractor that is compact sized, but more of a traditional tractor. I am not sure if it is available in the United States, but I really liked the looks of it. I have yet to see one with a loader on it, but Europe does not put loaders on their tractors like we do here. I think it would be possible too install one though..,
I really like articulated tractors. What I really like is their stability. As long as you turn the right way, you can turn them around on some pretty steep hills because their tire stance actually widens on a turn. And in some ways they go through the mud better, because you can "duck walk" them through the mud by using hydraulics to push themselves from side to side to get traction. But at the same time, the rear tires always follow the front tires, so that can work against you too.
The BCS articulated tractor: no idea on price and if you can get it in the USA.