I think from a clean appearance standpoint its pretty tough to beat a blower. Your 23 gpm would be plenty to run a blower for as much snow as you would be blowing at a time. The only down side to driveways and snow blowers is you about have to back drag away from the garage doors or travel parrallel with the doors which is a little tricky when its slick but doable.
A blower is not often the fastest way to move snow. I have a 10' FFC Box that holds like 12 yards of snow. Its got a back drag blade on it. I dont really like it. I like the looks of those V blades that you can make a scoop out of. That looks like a very versatile attachment.