Which Game?

[Liebchen]

If you're only buying one, then it depends on what type of battle you prefer the most. Due to HPS' policy of patching up older titles to meet the newer rules and standards, there is no qualitative difference between them, game engine-wise.

Kharkov has assaults with lots of breakthroughs and counter-breakthroughs. It's a fairly mobile battle.

Rzhev is somewhat like that, but in the middle of a blizzard and so movement is much slower and there is zero visibility.

Kursk is more of a set-piece battle, with lots of high density assaults and few real breakthrough action. But it has some more improved troops and equipment on both sides.

That's the way I see it, anyway.