Comparing a full winter to an all-season/winter tire. The S950 will give you better snow/ice performance and the WR would give you better life and be a year round tire. Would recommend sticking with the H-rated or higher winter tire for the Legacy GT, which the 2 tires mentioned are. Here is a link for a number of different options:http://www.tiretrends.com/wheel2/iuc_pview/winter_pview3.php?tireSize=17&year=2005&model=3473&moreTires=onAll speed ratings are included in this listing, but recommend focusing on the H-Rated or better. Good options on the list are:Bridgestone LM25Toyo Snowprox S950Dunlop Sport M3Michelin PA2Pirelli Winter 240Yokohama AVS V901