I read this with great interest. I like I loved the snow/ice ability of WS60's etc but hated the sloppy overall handling otherwise and went studded Gislaveds last. I see the IG20 is better technology than this however.
Going with the IG20s, in comparison with what you've had (WS60), may or may not give you your desired results - remember, the above-cited Wheels.ca article you're referring to compares only the IG20s with the previous-generation WS50 - even of the original test that it was referring to, it's c.2007.
Aside from that 2007 test, I do not remember the IG20 being among the top-rated of that particular genre anymore, and remember, back in 2007, the Dunlop SP WinterSport 3D was king of its own sub-genre ("Performance Winter"), and it has long since been displaced of that coveted spot, and I think that's what happened to the IG20, too.
If you're speaking of winter tire technology, the IG20 is already 3 to 4 seasons behind when it displaced the WS50 (in that particular test) - and the WS60 is, itself, 2 to 3 seasons old (thus displaced by the Michelin Xi2, which was new 2 seasons ago, but gained top-honors this past season, with more complete testing).
Overall, I'm also somewhat hesitant to cross-compare the studded Gislaveds with the sub-genre that these two then-premium "studless ice & snows" otherwise occupy. The reason for that is because the Gislaved Nord Frost 3 - aka General Altimax Arctic - is a past-iteration variant of what is even now only a mid- to lower-mid pack performer, the Nord Frost 3. This would put the Nord Frost 3, if that's indeed what you had (and I'm making a total assumption, here :icon_redface

, at a severe cross-comparison disadvantage...at least in the way which I view the equation.
This time around I want to get a very capable winter tire that I can run longer or even as an alternative to my all out summer tires. Nokian seems to have a good option in the WR GR2 SUV but is pretty expensive.
Remember one thing - that a part of the winter equation is, undeniably, tread-depth.
Running a tire which you've chosen for winter duty all-year means that it will wear all year, and for every bit of tread-depth you sacrifice, you will compromise winter capabilities to some degree, to-boot, when the wintry stuff starts to accumulate on-ground.
Certainly, this is not to say that such a tire selection is either impractical or untenable - rather, it's just that it has to fit the end-user's expectations and needs. :smile:
Are there any other good options that are very winter capable but also good for summer and even light off road?
So, this ties back into what I just mentioned above: running the tire year-round will somewhat compromise things, based on treadwear alone.
The other complicating factor is that the winter/summer roles are unfortunately really quite disparate - expecting a tire to fulfill both roles will likely lead to disappointment one way or the other, depending on just which side of the compromise your final decision comes to rest on....
With winter tires, it would be logical to think that V-rated "Performance Winters" should be the closest, in terms of both performance and wear, to their "All Season" cousins. Even so, an enthusiastic driver will likely complain about the lack of directional stability and overall vagueness (from both tread-squirm as well as sidewall flex) of such tires, when driven aggressively, during the warmer months.
Go the other route, with more "winter capable" All-Season tires, such as the venerable Continental ContiExtremeContact, and you will also undeniably give up some winter capabilities, compared even against a comparable V-rated "Performance Winter" tire.
[
Of off-roading, I'm hesitant to render opinion, as I truly do not have enough experience in that regard. :icon_redface: ]
And this is, of-course, where the Nokian WR and WR G2 (SUV or otherwise) finds its unique niche - in being surprisingly effective in both extremes: unfortunately, it is pricy, and the problem of tread-depth/consumption is one that's inescapable.
Certainly, this is not to say that a compromise cannot be reached.
There's plenty of us who simply choose to, say, stay on a set of "Performance Winters" or even more aggressively-winterized tires all-around. At the same time, there's also those who utilize the more aggressively-winterized "All-Seasons" for their winter tires.
It's all about what compromises are most acceptable *_for
you_*, as a unique individual, with unique needs and preferences. :icon_cool: