I'm going to admit my ignorance. I had a 4runner for a long time, but it was a Limited and had that narrow wheel that everyone curses. There weren't that many tire options at the time so I kept buying the OE tires. Now, I'm learning here that those were likely all-season tires and you all are talking about all-terrain tires. I thought they were the same thing.
Now, having said that... I found the 4runner for the most part did just fine with those tires. A lot of forest service roads, desert, red rock, etc. I don't do anything boulder like. Dirt roads, often narrow, sometimes steep short stretches, gravel, some sand. Utah.
When I look at these tires you are all talking about, I have to wonder how much is overkill. It seems to me that the 4x4 system of these vehicles can make up for the lack of super aggressive tires in most typical use-cases.
What do you think?