I was at both the Spurs and Forest matches and marvelled at the football we played in both.
In my opinion though, the Spurs match shaded it, certainly as the greatest LFC performance I've ever seen. True, at the time Spurs were poor (when are they not?) but they came into the game on the crest of the usual London media bullshit about the two world cup winners they'd signed and a young lad they had called Glen Hoddle and as per usual it all came to nought. Well seven nought in fact.
Plus, that Liverpool team of the late 70s - the Souness, McDermott, Case & Kennedy midfield - was the best I've ever seen. It had absolutely everything.
Another match which goes under the radar is a Charity Shield match at Wembley when we took Arsenal apart 3-1. Their goal was only a consolation that we gifted them, because after all it was for Charity! But before then we took the piss out of them with exhibition football. Someone will have to remind me of the year.