You did say you had winter driving to deal with in Ohio, but only want to run the one set year around. And, you want to get more mileage than I'll see with my Toyo's.
I'd still want a tire with a higher percentage of void in the tread for winter and rain. How about the Good Year All Terrain Adventure that's rated to 60k miles. I've had both Good Year AT and AT/S tires on a Jeep Cherokee...both went well past 50K...so I's imagine these would be comparable. So little choice with the Trailblazer and the 245's.
https://www.goodyear.com/en-US/tires/wrangler-all-terrain-adventure?cta=BBCardTireName
One tire if I could get it..is the Good Year Duratrac. Again...not a mileage tire. You must be seeing the pattern of my tire choices. Tire choice is about compromises.