The Rocky Mountain has Goodyear 235/65/17 VSB all season tires which is an upgrade from the stock sport model. I do not know what tires come with the 2010's (I think thats what you have by looking at your rims but your sig says 08?). Why didnt you like them in the rain exactly...poor braking, cornering, etc? Tomorrow I plan on taking it out in the rain for the first time to see how it handles.
Mine is an 08...in the rain, hydroplaning was horrible, spun the tires easily while accelerating very easy, really nothing good about them, so i figured if they were this bad in the rain, just imagine in the snow...haha
i bought Hankook Dynapro ATM tires, 245/70s...stock size was 235/70, very pleased with my purchase...