When it comes to towing, I much prefer the auto. The power never falls off and comes back on so the load shifts alot less, downshifting is done near seemlessly, with minimal speed loss, the u-joints and rear-end are much more taken care of with less torque spikes sent through them. Backing is much easier controlled with an auto, and if you are towing offroad in the mud, a auto will keep the tires spinning, and you won't have to worry about burning up the clucth, or not having enough wheel speed.
We have had less stressfull work, less spilled drinks, more interior room, and less broken parts with our Automatic trucks than our manual trucks. Try backing 20,000Lbs over a curb smoothly in a 2wd. With an auto, it's easyyy.
We do more offroad towing, and tigh manuvering in rough terrain, and much prefer the auto. It's awesome to get on the throttle, see some smoke start rolling out, and feel the truck start to really pull and feel all 6 tires start grabbing for traction while you pull the load up a rocky hill.
Now, with the 68RFE, you can choose your gear, and it will stay there. Want to use 5th gear for 200 miles while towing on the straight and level. just choose it, and cruise it.
That's my $. 02.
It's not really a "lazy" thing. It is what best suits your needs, and if you are doing alot of highway driving, the auto will probably be a better choice with the ability to choose gears, and the higher O. D.
Merrick