Another interesting thought, is the 'aces' we know today, might not have survived through the end, if they had no choice but to fight the whole duration of the war like JP or German pilots.
I'm very sure if that happened we'd also get to see 200 kill aces in the Allied side, but some of them could be the aces we know today, but a lot of others, may be not, with our currently 'familiar faces' being killed in action earlier than we may want to think.
In the end, it seems to me the 'hot-shots' never can endure, and only those who can firmly take the years of stress under fire, and still maintain a sense of self-control, survive through the war and become a super-ace. Their flying skills may seem like nothing special, but they survived!