I have a Kubota 2680 with the front mount 50" snowblower. LOVE IT. I have a Curtis cab on it also. Does a great job.I love having my little tractor on 6 acres, but I would go bigger by 1-2 sizes for 15 acres.
How dense are your trees and how much slope if any?
My neighbor has the next size up Kubota and he really likes that, but uses a ZTR for mowing.
With 15 acres, you may need to do tree cleanup and you might want trails in the future.
I can do those with my tractor and I love the BH for trenching and stumps. Great for planting trees and bushes too.