I think it's safe to say that OEM stock tires are pretty much on the low end of tires, however I've only had my car since march and it has not seen any snow, however, i didnt notice anything wrong with the OEM stock tires. I have driven them through rain they are pretty good, they havent hydroplaned on me yet. Aside from slipping here and there on rainy days I think it's normal for every tire to do that especially hitting the gas pedal hard from a full stop, as long as it's driven accordingly to weather and road conditions in conjunction with common sense, these tires have been fairly safe so far. I just check the pressures routinely as well I take them out every few Kms to check for any nails or screws imbedded in them and tighen them back with a torque wrench.
Just my experience.
thanks to the person who posted the survey, I will also definately check out the Goodyear tripple threads or michellin Hydroedge for the non winter season as soon as my OEM goodyears wear out.