Great choice! Next time around, you'll be able to switch to another brand and see what the others can do, but I love Blizzaks.
The last 10 years I have rolled through these... all excellent, imho. Can't go wrong with any of them. I find each has some characteristics that are better than others through Fall, Winter, Spring.. but all very balanced and only slightly better than the other in their own areas.
The key for me is how well they handle the fall transitioning from cool to frozen slippery roads. How well they drive on snowy versus icy roads.. and how they drive on the melting wet roads in spring.
1. Nokian Hakkapeliitta R2
Best overall, quiet, awesome on snowy roads, icy roads, wet roads, all tops - sometimes the most expensive, but they're usually close to Blizzaks, cheaper right now (I just bought a new set for my new R).
2. Bridgestone Blizzaks
My second favourite, depending on sizing, can get pricey - for my 18" wheels, they're more $ than the Nokians. Amazing on snowy roads.. only downside, a little noisy on dry roads.. and second to Michelin on icy roads, but way better than Michelin on snowy roads.
3. Michelin X-Ice
Love these... usually quite affordable. Quiet on clear roads, better than Bridgestone on cleared - icy roads.. still great on snowy roads, but see above.
Anyway, I am just rambling at this point now... living in Canada, the winters are a must, it's nice to have so many awesome options.