To be honest I would not buy any Nord for supersaws - and I love, love, love the Nord lead. I might even admit to loving supersaws. None of the leads really excel at it. Esp. when you have the virus and (even better) jp80x0 with purpose-built oscillators for this.
Having said that, the leads are great instruments. I think the “more analog” tagging of the A1 is actually down to one thing - it has a chorus. It may sound silly but it adds a lot. Especially if you are just browsing presets you may not realize that the beautiful analog patch you love is really just 1 saw osc and chorus. The Lead 4 strangely does not have chorus. The other leads have no effects at all. I have a Lead 1, 2, 3, 4 and wave. All great in their own way. If only they would keep the drum mode on the new ones.