For some serious snow moving with a Kioti view the u-tube link below.
YouTube - Bob & Wiley Kioti clean the driveway
I've found that when using my rear blower, a 75" Meteor on my DK35, that the platform of the tractor is large enough to stand on and look to the rear. But I guess that won't work for you with HST. I agree with the other posters, I like the rear blower so I can keep the bucket mounted plow I have to clean up when the snowfall is light.
Front plow and rear blower sure makes the tractor long though. My drive is on a fairly steep incline and I've not had to use chains with the rear tires loaded.
4- try to avoid versions that have a 'gear box' between the augers and in front of the blower paddles.