Going from Spokane to West Glacier, my RV GPS routes me to E90, at Coeur d'Alene go N on 95, at Bonner's Ferry go E on 2. The Googlemaps says from Spokane E90, St Regis 135, Plains 128, Elmo 93 to Kalispell. We are driving a 31 Class A gas, towing a jeep. Is one route more RV friendly than the other?