Oklahoma City to Palm Springs Ca. In February best route???

I-40 through AZ in February is hit and miss; it can be open with dry roads and little wind, or it could be shut down due to heavy snow, ice on the roads, no visibility or high winds toppling trucks and RV's on their sides. You also face the problem of few alternatives that would be any better or even open once past Gallup NM. And, lets not forget there is the mystery of how long? One hour? Eight Hours? Two Days? Sometimes its just easier to save the gambling for the casinos.