As it happens, I'm doing my history term paper on WWII pilots so here's a little snippet

:
The highest scoring ace of all time was the great German Luftwaffe experte Erich Hartmann with 352 aerial kills. (compare that to the highest ranking American ace who got a mere 40 (not surprising, though, seeing as an American got to go home after his tour, while a German was forced to fight until the war ended or he got killed), British ace 36, Japanese 113) Flying Bf-109s (Me-109s) against the overmatched Soviet Migs and Yaks for almost three years, he accumulated his unrivalled score. Hartmann claimed, that of all his accomplishments, he was proudest of the fact that he never lost a wingman. He is also reputed to have said. "Get close .. when he fills the entire windscreen ... then you can't possibly miss."
Hartmann began flying with Jagdgeschwader 52 (JG 52) on the Eastern Front in October, 1942. He scored his first kill in November, and only achieved his second three months later. As JG 52 retreated along with German ground forces in 1943, Hartmann's score began to mount, reaching 50 by August of 1943. Within the month, he had reached 80, and was promoted to lead 9./JG52. Earlier in the war, 25 or 50 victories would have earned a German fighter pilot the Knight's Cross. By late 1943, Hartmann had to down 148 before he earned his Knight's Cross. By March 2, 1944, he had reached a total of 202, earning him the Oak Leaves.
He was awarded the Third Reich's highest regularly awarded military decoration: The Knight's Cross to the Iron Cross with Oak Leaves, Swords and Diamonds. (With apologies to any German readers of this thread, I must say that only the Germans could come up with a name like that: "Das Ritterkreuz zum Eisernen Kreuz mit Eichenlaub, Schwertern und Brillianten".)
To be accurate, the highest military decoration was "The Grand Cross to the Iron Cross." It was only awarded once to Hermann Göring. The second highest military decoration was "The Knight's Cross to the Iron Cross with Golden Oak Leaves, Swords and Diamonds" and was also awarded only once to the Stuka ace Hans-Ulrich Rudel (518+ Tanks, 700 Trucks, 150+ Flak and Artillery positions, 9 Fighter/Ground Attack Aircraft, hundredsof bridges, railway lines, bunkers, etc.Battleship October Revolution, Cruiser Marat, and 70 landing craft .)Thus, Hartmann's medal, "The Knight's Cross to the Iron Cross with Oak Leaves, Swords and Diamonds," was, to be precise, the third highest German military decoration through WW2, was awarded to 27 soldiers, 12 of whom were Luftwaffe pilots.
In the final days of the war, Hartmann flew to the British sector; like most Germans, he wanted to avoid being captured by the Russians. But the Western Allies turned him over to the Soviets anyway, and he spent over 10 years in the Gulag. After his release, he returned to West Germany and served in their Air Force.
the big list of aces:
http://www.csd.uwo.ca/~pettypi/elevon/aces.html