I've carried a broad range of auto's hiking, camping, and hunting in Alaska with never a problem. I also used to carry one when I worked road crews, and still occassionally carry one working here in the Prudhoe Bay oil fields. All three enviroments in which Murphy loves to lurk.
To say "carrying auto's is good or bad" is to paint a picture with a pretty broad brush. Just as some fixed blades are more suitable than others, likewise is the case in auto's. a $7.00 China special auto for example would be an exercise in p!ss poor judgement. A Benchmade AFO, Microtech Socom, etc. would be a fine knife to carry, and no more delicate than any other folding knife. Really, if you've ever replaced a spring in most autos, you've probably noticed they're not all that complicated, and don't usually have that many delicate parts to concern yourself with.
If I were considering another auto for wilderness carry I'd consider:
handle comfort and blade design. big comfy handles and flat ground blades are my thing. but blade design, grind, etc. is another topic altogether.
I would NOT carry a double action OTF, though I've had good luck with a single action Dalton Cupid until it got too clogged with mud and cement to open independently, then I helped it awhile, until I could wash it properly.
I myself would prefer a coil spring auto, with your average button lock. KISS simple and very tough. One thing I would be aware of is the fact that if your knife does get gritty,nasty or if your sear just plain goes out, your knife could be a bit of a PITA to pack for the rest of the trip, and a bit dangerous.
I personally would be comfortable with either of your choices as an auto. I used to own a D2, and absolutely loved it until I sold it to a buddy of mine in a fit of stupidity. I'm still trying to buy it back....
good luck in your decision!