My advice is blizzaks if u see snow there. Thise tires are made to not wear if u drive in wet and drive winter days but work very well in snow. If you dont see anything but a bit of snow here and there get all seasons.
Do not by the bf goodrich tires for summer, tires are not up to snuff on a big car like this and probably dont give u traction improvements. I tried them on a track car once and the edge of the tire was getting chunks ripped off at the track. Same with khumos.
I work for General Motors and am not an official spokes person for General Motors. My views and opinions are my own and not those of General Motors.