I stand to be corrected sec, but I think you're wrong on both games, it was the 84 promotion year game at Cambridge where it went off big, one of the St Helier boys was caught up in it and got a bit of a shoeing.
The game went it went mental was in the 80/81 season. We used to always win at Cambridge, in the main 1-0, as you say Pop Robson
scored the winner once, Gary Johnson seems to ring a bell as well.
From the walk from to the station there was a sort of park thing with a concrete tunnel that was a nightmare leading to the terraces about six steps high
at our end.
It kicked off long before we got in the ground not there, but on the road leading to the Cambridge end.
When we got to the ground the turnstiles were jammed with Chelsea and they let us all in because it was by then kicking off outside their end.
Think the gate was declared as 8,000 or so, it was complete bollox. We were jammed in like sardines and loads of Chels climbed floodlight pilons
and were standing on top of the stand to the left of us.
It was typical of the East at that time, was once at Norwich and they crammed thousands of us in that poxy end next to the Barclay End with wire
separating us from them. It was Micky Greenaway superb in the stand on the left always singing but never in our bit, it was hillsborough waiting to happen.
Back on subject,
I'd say West Ham by a country mile as the scariest both home and at pikeypark.
Cardiff away and once at Newcastle make up my top 3.