I think part of the Lw "quest" to nueter the spitfire is just a misunderstanding of the air war in Europe (or air wars in general). Another facet is the fact that the German aces had simply obscene kill tallies.
So people come with the argument that "Oh my god, the LW planes here suck! How could they have sucked so bad and Hauptmann von Epeen scored 856 kills??!!" (Yes, that is exageration, cut me some slack).
For one, we have a WW1 type (and I'm not even sure WW1 was like this) arena where the emphasis is on "fighting" mano y mano. The fact that we use late WW2 equipment does not change the WW1 mentality (or maybe pre WW2 Japanese mentality) of the MA. The emphasis is on manueverability (particulary flat turning and low speed handling) and acceleration, not so much on any other facet of an airplanes performance. So a good fighter can turn well, handle forgivingly, and as a tie-breaker, packs a wallop. Someone mentioned earlier that it wasn't the Spit, or La-7, that makes the LW planes ineffective, it is the combination of the two. I agree with that wholeheartedly. 1v1 vs a Spit, the 109/190 can fight for a bit, and at least run away if the fight isn't going well. Even if a 109/190 gets in over its head vs multiple Spits, it still has the option of running away (assuming the 109/190 and Spit are of similar vintage). However, the MA has lots of different planes, and it is fairly rare to be fighting 1 spit, or X spits without any other planes. The La-7 is actually the LW killer, to me. It does everything better than any 109 or 190, it is kind of a mix between the two except with better performance and firepower.
Anyway, the MA is an arena where "hi alt" is 12k, and the most common altitude for fighting is 0-5k. Generally, an engagement is Co-alt (within a couple K of the enemy, anyway) and both sides know there is a fight. The war in Europe took place at all kinds of altitudes, but was generally considered to be a "high altitude" war... it would be considered an alt-monkey war in the MA... to put it in terms of planes... if the most common altitude band for fighting in the MA was the same as it was in Europe in 1944, the Ta-152 wouldn't be quite as worthless as it is. It still probably wouldn't reign supreme, but it wouldn't be useless. More importantly, in Europe... both sides did NOT know there was a fight. More often than not, "fights" lasted one pass. You either killed your unsuspecting opponent, or blew it and ran away. That was true no matter what nationality the pilot was, or what plane he was in. So what made a plane a good "fighter" in Europe is different from what makes a plane a good "fighter" in the MA.
Second, the German pilots really WERE that good, at least the ones that posted absurd numbers. They were fighting constantly for 6 years, and one can assume that it is safe to say that had the British or Americans had the same philosophy, there would have been several Allied pilots with scores in the triple digits.
Hell, I flew AH for around 4 years. In that time, if I recall correctly, I had around 3,000 kills in 190s (was ~1k in D-9, A8, A5) and a couple more thousand in 109s (mainly in G-10, but I flew the F4 and G2 with regularity as well). I think I can say that I know the AH LW about as well as anyone (well, except for the latest changes, that is). The planes WERE competitive. The problem is they are harder to fight in (AH style) than almost any other plane we have. Eventually people (myself included) get tired of handicapping themselves to that extent.. so they either burn out or switch planes. I flew the Ki-84 almost exclusively for the last ~5-6 months I flew AH, simply because it was different from the LW stuff I had flown almost my entire time in AH.
The only "LW gripe" that I really buy into is the guns issue. I do feel that the way that AH models ammunition unfairly hampers the cannons that aren't Hispano's, but really hurts the LW in particular. Anyway, this has been a wall o text, more than I've typed here in a couple years I think. Congratulations if you got through it all lol.