Hi Pete. I’ve been looking at some on/off road tires myself. This comparison on TireRack might be helpful. I checked the Falken, but it’s only available in a 275/55R20 In the 20” size. Too big for the Passport.
https://www.tirerack.com/tires/surv...Dry=0&advWinter=5&advComfort=5&advTreadwear=0
https://www.tirerack.com/tires/surv...Dry=0&advWinter=5&advComfort=5&advTreadwear=0