They are used as rootstock because they are deep rooted, drought tolerant, and very cold hardy. Conveniently, Antonovka are also one of the few apple varieties that tends to grow true from seed. This makes propagating them as rootstock much easier, since it's very fast and easy to plant seeds rather than making clones. Here's an article that talks up the use of Antonovka as a rootstock: http://www.kuffelcreekapplenursery.com/rootstocks.htm.
I've got 20 Antonovka ordered for next spring that I'm planning to graft to. Perhaps I should leave one whole and see what it produces --- like most Americans, I've never eaten one.
My dad likes Starkrimson. I did not but he gave me a big bag of them mixed with Florina so I find them eatable now, after eating all the Florinas. The juice is great though. Not that acidic. My favourite for eating is Fuji but I also like Gala and Florina. It seems like most of apples we eat in Eastern Europe are in fact intended for cooking? Normaly I'll get them from my family's orchards or the farmer market. Jonatan and Jonagod is really common here, but too acidic for eating raw, great for apple pie.
I don't remember trying Antonovka but we sometimes do get a fair share of Polish apples in the supermarket. I'll look for it. But if it is anything like Granny Smith I'll probably dislike it.
Never tried Starkrimson I think? But it looks similar to the ones in malls from the photos.
Both my grandpas had like a dozen different kinds of apples (one tree of each) - I think they planted them more to have apples through the year than for their taste. The early summer ones (papierówki?) were awful. Small, totally white, very squishy and tasteless (not acidic and not sweet).
Yes, I know the summer apples. Horse and donkey food. Some people like them though.
Poland has very good apples and possibly the best apple cider I had. Dorbonski, I think, not sure though.
I dislike most of the red apples, especially the ones you can find in malls - they are too squishy and too sweet.