Both areas are seeing snow today, and SB had the snow guns fired up this past week too. By the time you arrive the corner may have been REALLY turned. Since you are in town over a Saturday, I would suggest hitting Powder Mountain that day as long as visibility is ok. Saturdays are busy at Snowbasin. PowMow has complimentary mountain tours that head out of the Adventure Center each morning around 10 which helps get a feel for the mountain if you've not been there before.
Agree with contesstant, do try to ski both mountains. They have different vibes and different terrain, but I think their charm is that they feel like they're in the middle of nowhere. Which they sort of are! Enjoy your time in Eden, it is a beautiful place.