Yes, I do need and AT type of tire. I live in California and I do a lot of desert camping and exploring, with occasional trips to Baja, Mexico.
It's a two hour drive on the highway and then 10-15 miles in on rocky, sandy, rutted roads into most of our desert campsites. Sometimes even more if we go out exploring. We can put 40-50 off road miles in over a weekend. Nothing very serious as far as "rock crawling" types of situations, but definitely need sidewall and tread protection from sharp rocks, and also need traction for sand washes. We will often air down to help with deep sand situations.
I just had the alignment done 3 years ago, but am going to install new Bilstein 5100's front and rear pretty soon and set the front end up 2 inches. I will get new alignment done after the shocks are installed.
I put about 40 miles on the new Falken Wildpeak AT Trails today and have to say I like them. They feel good on the road. Not noisy at all. They track extremely well. I'm happy with them so far. I'll post up some photos tomorrow.