When Apple CEO Tim Cook and a bunch of his deputies take the virtual stage next week to announce new iPads, they’re going to spend a lot of time talking about specs. If the rumors are true, we’re going to get new iPad Pros with OLED screens and thinner bodies, new Airs with faster chips and a correctly placed front camera, and a couple of new accessories. Before they even launch, I feel confident telling you these are the best iPads ever. But after all these years, I still don’t know…