Squad Battles / Heroes of Stalingrad

[Rabbit]

This might be an oversimplification, but I think you might find HOS more enjoyable in the short term, but you will find Squad Battles (e.g., either RV or AOTR) much more enjoyable in the long term. In other words, you will find Squad Battles offers vastly more replayability and likewise you'll easily find plenty of human opponents for PBEM (which is where Squad Battles truly shines!).

Also once you learn the mechanics of Squad Battles, there is a wealth of Squad Battles titles and scenarios available. So unlike HOS where you'd learn the game engine and play it for a while before moving on to some other war game, you might easily find yourself hooked on Squad Battles for a long time to come. Case in point, I started playing Squad Battles back in 2009 and I'm still hooked!