Even though I never put much stock in them, I always enjoy reading comparisons like this. The one comment I'll make pertains to Grados, though. I've not heard the PS1ks, but I've owned four pairs of Grados and enjoy them quite a bit. Grado's phones are voiced by ear...they say right on their website that they're not focused on flat FRs and other such measurements. Most people who have spent any time on here know that Grados don't measure well. Some people criticize Grado like they're idiots who have no idea what they're doing, when the truth of the matter is nothing of the sort. They focus more on audio as an art, not a science...for those who aren't into that, there are plenty of other products to choose among. Criticizing them for not being something they never sought out to be in the first place is pointless.
The other thing I noticed is the way the results are distributed...there isn't much middle ground...seems like he rates a phone as either completely brilliant or an absolute piece of crap, lol.
But as I said, I still enjoy stuff like this, especially when it's based on comparisons of different products. Thanks for posting, Austin.