Can't resist.
Realism is one of those words that has several different meanings. Some of you guys are talking past each other.
One meaning is Technical Realism. This means that each plane performs as closely as possible to it's real-life model. Gun dispersion, E retention, physics, everything.
Another meaning is Tactical Realism. This means that the planes are employed as they would have been in real life. This gets into plane sets and mix, tactics, strategy, and the like.
As we all know, there are several on-line WWII prop sims out there. Each strives for varying levels of accuracy in both Technical and Tactical realism.
FA, for example, tries for tactical realism, by forcing players to choose a country and then limiting their choices to that countries' planes. But FA disregards technical accuracy, because the players there don't want to be bothered with pesky things like the laws of physics.
I've only played WB a few times, but it sounds like WB tries for both Technical and Tactical realism.
AH is the best sim I've tried for Technical Realism. The flight model and the attention to detail in AH are just far superior to any other current attempt to model the physical behavior of WWII planes.
However, AH has zero Tactical Realism, because there are no COUNTRIES! Without countries, and the limits that imposes on plane sets, any discussion of realism in the context of tactics, plane mixes, etc is a waste of time and breath. It's irrelevant how many CHOGs would be flying in a historical WWII battle, when you are flying a game where a P51 can wing for a FW190, or an Me109 can escort a B17.
Now I personally don't advocate changing to a country arena. I enjoy hopping from plane to plane too much. But I accept that this makes historical accuracy impossible in the tactical sense. However, I think most of us share a common desire to see technical realism maximized. If AH ever wanders away from constantly striving for technical realism, I'll find another game.