As already said, depends on how, when, and where you drive.. It also depends a lot on the make and model of the vehicle.
When I drove for a living, I had to be on site by 9:30, and rarely left before 5pm, no mater where in the country the site was, so I drove the whole Rush Hour, which anyone that drives like that will know lasts at least 3 hours!!! I dread to think how much of my life I have wasted sitting in traffic jams, but having a nice comfortable car, with an Auto box was what kept me sane. When on the motorway, you knew that as soon as you wanted more power, she would give it to you, with out needing to start pressing extra pedals, and wiggling sticks, and in town, it allowed me to concentrate on the strange roads, with out ever having to take my hands off the wheel.
When towing, I got into a bad snake, in heavy winds, and even though in my mind, I knew the theory of what to do, actually making your body press the accelerator, when everything about you just wants to shove the brake pedal to the floor, is already a very hard thing to do, but not having to worry about trying to change down gears as well, was so nice, and to be honest, I am convinced that being in an Auto was what saved us.
Having said that, For some reason, I still prefer to drive a manual when it comes to the 4x4, as it seems to be far more controllable on just the throttle, especially when in low, and in the case of the T2, from what I have read, the Auto boxes are not really so well designed for towing, which is a primary job for my T2.
We have 2 Terranos, a Manual, and an Auto, and out of choice, I always jump in the Manual, but I do love the auto, and enjoy driving her, but seem to just go for the Manual one when it does not matter which one I take (subconsciously, I must be a boy racer).:lol
I think my one thing that would always make me go for a manual on an old car though, is you have a lot more options to get you back home with a manual, when things go wrong... you can jump start them if the battery is flat, you can rock them backwards and forwards in gear to free a stuck starter motor, you can tow them....