Ronald:
I had stopped through Oak Hill on that trip across upstate NY when I met you, I guess it was three years ago now.
On that trip, I saw seven Ross courses: Longmeadow in MA, Glens Falls, Teugega, Monroe, the two at Oak Hill, and the CC of Buffalo. And Oak Hill (East) would have placed sixth out of seven if I had to rank them.
Based on that, I would say it's not among the top 50 Ross courses right now. I doubt it will be among the top ten or twenty even when / if it is properly restored. It's always been a bit overrated, because it is a tournament course ... the irony being that a USGA president's telling the club that, around 1970, led to all the changes that dragged it further down the list.