It's like comparing a tank to a VW...
Uh, one's for action and the other is for pure leisure?

I also use to play Apache Havoc by Razorworks. I have to say that the graphics were pretty well-made for its time [DX9 hardware wasn't event out yet during this time] and I loved it for its entertainment value. But just like LOMAC, it only provided a map [a very big map with a dynamic campaign] that is strictly confined to just one three areas in the world. Not only that, it wasn't all that flexible. Heck, no mods were made even after a year since it first came out.
Then we have software like the IL-2 series. IL-2 has a ton of great graphics and can be regularly updated [although the update process is rediculous at best]. Not only that, you can merge several versions of IL-2 together to create one massive sim. It also featured a very stable multiplayer experience. But just like LOMAC and Apache Havoc, the IL-2's maps [in all versions] were strictly confined; and if you went beyond the boundary, all you will see is open space with nothing on it. Above all, it doesn't allow for much mods except for repaints.
What do these pieces of software have in common? Just like Gears of War, Medal of Honor, and Call of Duty, their maps are confined and they are only made action. The FS series is a whole different level where you can do everything, anywhere in the world.
But even FS has its own drawbacks. It has a habit of being very demanding; and because everyone modifies FS in different ways, you'll tend to see strange things while you're in MP [jumbos flying like fighter jets, cessnas hovering over the ground by 10 feet, etc]. Not only that, every PC is extremely unique to the point where FS doesn't perform well as expected on most computers [there is just too much variety and people have a habit of doing strange things with their computers].