My very favourite apples are Cortlands, which aren't available all year, and my second-favourite are McIntosh, which are available nearly all year. I make do with Paula Reds and Ida Reds during the summer gap, but I don't like those ones nearly that much. I actively dislike Red Delicious and similar varieties. I find Granny Smith too tart and Honeycrisp too crisp.
Currently, the Loblaws I usually go doesn't have either Cortlands or Macs. Metro had Cortlands up until this week (although they were the kind in the bag rather than the kind in the bin), and now they still have Macs. (This is an interesting reversal - usually Loblaws more reliably has produce I like better.)
However, I've noticed in both supermarkets a sudden influx of apple varieties I don't recognize. There may well be apples I like among these new varieties, but I have no way of knowing which ones, and I don't much fancy the idea of buying and eating a bunch of apples I don't like just in case one of them meets needs already met by existing varieties.
I think Foodland Ontario could help me with this.
Foodland Ontario's mandate is to encourage people to buy local produce. Surely helping us discover new things we like falls within this mandate! Foodland Ontario is also basically the "official" source of information about produce varieties. If there's such thing as tasting notes for apple varieties, they'd be the ones who have them.
So they should take the information they have about all the different apple varieties, and use it to make a grid, or a flowchart, or a nifty little interactive website where I can input the fact that I like Cortlands and Macs and dislike Red Delicious, and it would tell me what other varieties I'm likely to enjoy. The more varieties you can give your opinion on, the better results it could get - so if you do find yourself going through the produce section doing trial and error, it can help you pick better next time.