I'm having this debate as well. I'm moving to 285/70/17's at the same time as when I lift my 4runner. Can't decide if E Rated AT3W's are worth it or to just say with the C rated 6 ply as they are very capable based on what I am reading. I would mainly be out 4 or 5 times and currently I mainly like to drive roads or moderate off road trails to get to more isolated camping spots. That being said, I initially thought E Rated as I didn't want to limit myself in potential future endeavors. I had not thought about the harsher ride for my daily driver or if E Rated would ever really be needed due to the capability of the 6 ply tire.

$30 difference per tire plus and I'm getting 5 tires.