Our Rogues have 225/60R17, not 70, for the SL models and 215/70R16 for the S models.

I got free steel rims from the dealer when I bought the car and could choose between the two sizes.
I choose the 16 inches rims as the tires will be cheaper to buy and having the smaller pattern in the snow is better for traction. Personally, I won't go on larger ones.

BTW, for my canadian fellows, I went to Costco this weekend. They receive the new Michelin X-Ice tire, the Xi2, and they have it in both sizes: about $188 for the 16 inches and about $213 for the 17 inches. Included in their prices is the $11 for the installation on the rim. They should soon have the 16 inches tires (in about two weeks time) but been told to better order the 17 inches ones as they may not have a lot in this size.
I will check at CT for their prices but will probably end up buying at Costco.

If you find good deals, do not hesitate to share.