Also keep checking ebay since streetgraphics offers them time to time with many designs and colors to choose from and you usually can get two stickers for under $40 shipped. I even got 3 smaller ones.
I think rubber is rubber.. even a highway tire has a lot of grip for generic off-road use. I mean unless its mud, the extra 2 inch knobs only do so much IMO
It really depends on the truck and the TRD one would look awful on a Limited model.
I like my Sport version since IMO it fits the whole OEM look of my truck I was going for and I made sure I placed them close to what the factory would've done if they made a TRD Runner but I think the 3rd gen Highlander/Sport models came close especially in '99 with the rear locker,scoop,faux skidplate and taller coils which are for the most part TRD pieces and the Limited wheels were a nice touch to set it apart from the standard SR5s.
Proper color combo is important too and I used the color scheme of the TRD Tacomas that came in Imperial Jade Mica.
And IMO they don't look out of place on or off road.