I had literally tons of QMB scenarios in which I went vs at least 4 ace enemy aircraft of the correct period. Like Hurricane vs 4 He-111 (downing 4 of those on ace level with Hurri was a nightmare as those were the snipers back in a day), F6F3 vs 4x ace Ki-84s, F4F vs 4x ace A6M etc. stuff like that.
Arguably A6M was the toughest ace Ai from that time, close second would be boosted Spitfire. But last time I fired up the game it was like 2009 or 2010 so many thing could have changed.
Once I even pushed to the limits and went Me-262 vs B-17 scenario... managed to down 25 of them on realistic settings.
One of these days I'll probably put some of the most interesting stuff online, if for anything that for nostalgia's sake.