Very cool lists and very interesting, Shivas.
But it still amazes me you include Pasa in your list of toughest courses. Add this to the ever-growing list of first things I've ever heard anyone say, coming from you! That's actually kinda cool.
Now I'm not gonna say it's an easy course, it isn't. It is tough to score there no matter what.
But I'm here to tell you I am NOT that good of a player (many here can attest to that!) and I have most definitely had good rounds there. In fact I once had a 70, which when Brad Miller or several others read this is gonna sound like something from Ripley's... But I swear it is true. I guess it helps that I've played the course 25+ times. But still, it is a great course, it is a fun course, it's beautiful, it's a hard walk... I can dig all that... but it doesn't belong on any list of toughest courses. SOMETHING had to be up when you were there. Conversely, I don't think I've ever broken 80 at Spyglass, except one 79 from the whites. And I've played there quite a lot also...
You mention it was the greens that made it tough. Yes, they can get to speeds that make them absurd, and then if they give you evil enough pin placements, then I'd say it's the toughest course in the world.
That has to be it - you had to have caught some AWFUL pins. That's the only explanation. The course just plain isn't THAT hard when they give pins that are "fair", and by that I mean, pins where gravity will allow a ball to stop by the hole when it's normal forward impetus has ceased...
Absent awful pins, Pasa is so much less difficult than Spyglass that the comparison seems silly to me.
But hey, I am trying to figure this out... not making ANY judgments here. We all have our own perspectives indeed and mine is sure as hell just one!
TH
ps - I've never played Medinah but I too have played MANY very difficult golf courses and Spyglass is indeed right up there. Shinnecock is too. Portmarnock... Muirfield (in any sort of wind)... I could list a bunch also. But the hardest course on this earth WAS Fort Ord Bayonet, in the military days. Have you played there?