Education over Entertainment...mostly
My wargaming usually propels me into doing more reading...and more reading usually propels me into playing more games on the topic. Certainly the best games combined entertainment and education together, but I tend to focus on the educational aspects as the games help me to understand why things happened. Systems that assist in doing this I will prefer over systems that don't. A good example is command and control rules--I'd much rather have an orders system (a la TCS or CWBS) vice the LIM system or "random activation" system we find. The latter works best for those seeking entertainment over education; the former is sought after by folks with my bent for education over entertainment. Both induce fog and friction into the situation...it's merely a matter of taste.
Now, I will confess that some entertaining games do capture me. For example, ASL is and always will be primarily a "comic book brought to life"--it's incredibly detailed, to be sure, but the educational value is not very high when it comes to understanding tactical-level combat. But it sure as hell FEELS realistic and is a heckuva lot of fun to boot! The educational value is aimed more at the "buffs" (learn about arcane armored vehicles and equipment!) than it is for serious military historians. You have far too much intelligence and control in ASL...and things happen so damn fast. Don't get me wrong--I love this game. But it's FUN more than educational.
Of course, it's very tough to design tactical games that are educational. The scale (particularly in terms of time to make decisions) is hard to model--computer games do this a lot better. Educational board wargames tend to work best for grand tactical, operational, and strategic situations!
My favorite systems/games on that are Kevin Zucker's games on the Napoleonic Wars at the operational level (BONAPARTE IN ITALY, HIGHWAY TO THE KREMLIN, etc) and the Gamers'/MMP's Operational Combat Series (OCS)--TUNISIA, SICILY, HUBE'S POCKET, GUDERIAN'S BLITZKRIEG, ENEMY AT THE GATES, KOREA, etc.
--emw