Yesterday I upped from A30 when it was under attack from both bish and rooks and isolated. Landed 3 or 4 sorties and a fair number of kills in a 109G-10, it was chaos and bandits in the air and GVs on the ground some of the most fun I've had in this game yet. The hard part when you fly alone (no wingman/squad) under such circumstances is to keep watching your six and maintain a high enough SA to spot attackers while still focusing on your target and maneuver to shoot him down.
Anyway, I play and fly for the kill, as simple as that, and the only stats I look at are fighter rank, kill/death ratio, # of kills and hit %. That's all I'm in in for. I love upping from a defending base in a 109 to take on the fighters, people tend to get sloppy when they think they have the upper hand, or they are just trying to bomb the base out and care less about being shot down.
As for the 190, if you don't run from a fight that you know you'd loose you're stupid imo. The only plane I fear when flying the 190 is the P51, it's faster, turns better and the only disadvantage it has really is climb rate, but that's rarely a factor.
Running from a 51 though is almost sure death for a 190 because he will catch you and he can turn better as well. So my advice to 190 pilots is fight the 51s and wait for his mistake, still he could run from you but hey that's a victory too.
=S=