I use the Bosch Micro Edge Plus (about $40 / pair)

They handle mud/snow/ice/rain with ease. They should last about 2 years like they do on my Audi S4.

Pricy, but worth the money considering your life could be on the line.

 

if you live in a place that has really bad air pollution, consider your blades toast. the high levels of ozone associated with extreme levels of air pollution, are the primary culprits when it comes down to figuring out why your blades only last a few months.

just my $0.02