My newer Kubota was my first HST. For "back and forth" work, there simply is no way to describe the heavenly ease of use. For tight work, around trees, buildings, structures of all kinds, it is absolutely the greatest ever!!
A gear tractor is designed to be put in gear and work a while, in my opinion. They were and are awesome for row crops, cultivating, plowing and such in the field. If I had a lot of that kind of work to do, I'd buy a gear in a heartbeat.
Your work, that you do 90% of the time, will decide the issue for you. It is that simple.