I’ll throw in my limited experience here to maybe help you.
Of those 5, I voted the Toyo Open Country. But my experience is ONLY with the Original Equip 18” version on the GX Overtrail. Driving on various frozen, ice, packed snow in CO it was truly excellent. Driving at higher speeds from VA back to CO a few weeks ago along I-64 with deepening slush-snow..it was outstanding. My technique was lighter coverage areas I used Normal drive mode, then as road worsened I just selected the ATS and left it in auto (which leaves most or all trac control and related systems on). But I think the ATS is not on the Premium trims. Was amazing how fast I could drive. Zero issues.
Having said that - considering a Premium trim, and dedicated winter setup - I would recommend a full fledged snow tire. I assume in winter you may not be concerned with mileage, weight or towing; staying out of ditches and avoiding damages becomes the highest priority.
If price is a strong factor..then on this forum you can likely get a set of the 18” OT wheels and also find the stock 18” OE Toyo tires. Again, they are outstanding in winter conditions.
If you’re remaining with a 20” rim (?) then you have plenty of true winter, or, modern All Terrain (with the 3PMSF snow rating) to choose from.
I can’t speak to the other 4 tires you’re looking at (or even the normal, everyday version of the Toyo). No experience with modern iterations of those tires.
Prior to selling my ‘22 Sequoia I was using the Continental VikingContact 7 snow tire. It was great on that less sophisticated Sequoia drivetrain. Last season I did 25 round trips to my local mountain, and 43 the season before with that tire.
My intent, like yours, is a dedicated set of winters. Depending how my experience goes with the Nitto G3 I just installed (and my ability health-wise to return to the slopes again next season) I may use them for one snow season.
If not, then I’m planning to move the G3s to a wider 18” rim..and install a set of Continentals on my OE OT 18” rims.