I present to you......irony.
I posted a very rudimentary explanation before that, but to expand on that, I don't know that I'd break things down to tier 1A, 2C, etc. I do agree that you can't just name a manufacturer without differentiating between their models. With that said, here's my list of scopes I've owned or spent a bit of time behind;
Minox ZP5: stellar glass, excellent tracking, no CA within the range of magnification, turrets are good but maybe not great. The MR4 is my favorite reticle. It's my favorite scope at the moment.
Kahles K624i: good glass, very good turrets, some CA exhibited, some of the early generations had tracking issues, but i'm assuming they got that worked out
S&B PM2: The original gold standard for glass, excellent tracking, very good turrets. Only issue is their reticles haven't advanced for certain applications, but still more than usable. I still have one with the Gen2XR on my DTA SRS and I like the H2CMR, but the rest are just meh
Steiner M5Xi: Glass is good, but not quite the same quality as the ones above. Excellent tracking, excellent turrets, with what has to be the coolest second rev indicator on the market. The MSR still has a soft spot in my heart, but they suffer from the same lacking reticles as S&B
NF ATACR: I haven't spent time behind the 7-35, but everything I wrote about S&B applies to the ATACR 5-25, right down to the reticles.
Vortex Gen 2 Razor: For a while, it seemed everyone was using one, and that was only a couple of years ago, which is a testament to how far scopes have come in such a short period of time. It was probably the scope that started the "scope race" by packing a lot of features into a reasonably priced package. Very good glass, reliable tracking, EBR2C reticle was THE reticle to use for PRS matches at the time.
I would love to spend some time behind a Tangent Theta or Hensoldt, but my time behind the Henny wasn't long enough for me to give a fair review, and I have yet to see a TT on the firing line yet. I owned a Premier and would've included it, but since they're now defunct and their lineage is split between the TT and Minox, I didn't include them, but they were definitely a top tier scope.