I'm not sure you can compare teams from different generations that easily.
There's no doubt the current lot are faster and fitter, but only because the whole culture of football has changed (thanks in no small part to Wenger, actually

).
Point being if that old generation of players were around now they'd be in the same training and diet regime as other modern footballers. And they'd also be playing an era where you can't hack players down all the time without getting booked. How that would translate in to what team would beat who...
Impossible to tell.