I have the factory Toyota accessory deflector and love it. Just recently replaced it as the original (from 2000) got really brittle and I bumped it with my noggin while wrenching under the hood and broke off a corner. It cost me $60 but I think list is closer to $80 direct from Toyota. I tried the AVS one as I expected the Toyota one to be closer to $160 and I wasn't all about paying that much for one. After installing the AVS I hated it so I went to Toyota and got lucky it was competitively priced to the AVS one.
Not to mention the AVS one came with NO mounting hardware and some pretty sad Rub rests to stick to the hood.
The Toyota deflector flows with the lines well in my honest opinion with the raised middle part without being massive. It's also nice that you can see it from the cab where as the AVS one just disappears over the hood a little less than half way across. Not to mention the AVS looks like a keyboard wrist rest plastered on the hood. Kinda Dumb. Granted you may see more of it as at 5' 7" I'm not the tallest therefore my view point may be different. That said I bought the truck because it fits small Japanese sized people, like me.
Will post pictures of both if you're interested. I believe I have a shot of the AVS nothing and the Toyota all from the same time angle etc.