Kieran, whitch is a more efficient plane? One that is able to kill quickly but not able to flee by speed, or one really hard to get kills in but able to keep you alive?
In your example you neutralized TWO last generation LW fighters with a single Zeke. I'm seen a lot of times a mixture of 190s, 109s and even N1KJs trying to kill a single spit V with no success, and some of them dying to the hispano spray'n pray of the "lesser performer" plane.
IMO, kills per time is a much more important factor for a country than just kill/death. Kill/death is only useful for the personal score of an individual pilot. Just imagine the next only 2 countries situation: Bishland flying only SpitIX as fighter/attack, Rookland flying only 190D9 as fighter/attack. IMO, Rookland will get an impressive K/D ratio, but will loose the war quickly.