I'm running General Altimax Arctic XL, had them for 3 seasons now. Great snow tires for the money and surprisingly great thread wear. Got about 30k miles on them now and I wouldn't be surprised if they go 50k+, which is ridiculous for snow tires. It's a rebrand of Gislaved Nordfrost 3, both are own by Continental, one of the best snow tires of it's time. Reviews on Tire Rack are great and there are even people on there that run them all year round.
I used to have Nokian WR, also great snow tires but pretty expensive.
Have also heard good things about the W409.