RT43's. Better in snow. Top of your list for needs, no?
Seems early for tires? Regardless, seems CS5's get the nod around here for their rain traction, over the otherwise well regarded RT43's.
2011 Toyota Camry, base, 2.5L/6MT, 187k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 153k, ours
1999 Toyota Camry LE, 2.2L/4AT, 209k, his