Used SUVs

Despite the gas prices which have skyrocketed, I may consider purchasing an SUV. I just wanted to know which brands are reliable (problem free...I don't want to be on a 11% grade slope and have my SUV fail on me) and long lasting.

I've heard that the Chevy Tahoe is a really good car, but I've also heard that the Toyota 4Runner is the best bang for your buck.

Any insightful information would be appreciated. Thanks