I have toyo m/t's and they are excellent. Quiet onroad and lots of traction offroad plus they have a cool looking functional sidewall. The nittos are basically the same tire as the toyo since toyo makes them both. Personally id say go with whatever one you think looks better on your truck.
TRAIL GRAPPLERS...I had Toyo's on my truck and I loved them but they wore out in 30,000 miles. I have trail grapplers right now and they are just as good, but have lasted me a lot longer and cost me less.
Whichever tire weighs less. They're both basically the same design, so there's no difference there. Both are going to give you around 30-40k miles, depending on your driving habits. So, pick one that weighs less to help a little with fuel mileage and your suspension components. That's my $0.02. :cheers:
I had the STTs and liked them. They served their purpose well.