They key question is whether you want small actions or larger battles.
For small action games the more well known include:
Rules of Engagement - platoon level (a squad is the main tactical unit), thorough platoon-level orders of battle (army lists), 30 to 50 figures per side, each model equals one man, well supported online at www.greatescapegames.co.
uk
Crossfire - company level (a platoon is the main tactical unit), no movement measuring, 30 to 40 figures per side, figures based in elements (2-3 figs represent a squad),
http://crossfire.wargaming.info/
Disposable Heroes - platoon level (a squad is the main tactical unit), alternate unit activation, 30 to 50 figures per side, each model equals one man
Bolt Action - platoon level (a squad is the main tactical unit), random unit activation, focuses more on gaming that history, 30 to 50 figures per side, each model equals one man
Nuts! - squad level (a single man is the tactical unit), around 10 men a side
IABSM - platoon level (a squad is the main tactical unit), each model equals one man, card activation of units, benefits from having a referee, well supported online
I don't play WW2 games beyond platoon level myself, except when our club puts on large, multi-player scenarios. Games for larger actions:
Flames of War - I just never liked this, seems quite gamey and not very reflective of WW2
Battlegroup Kursk - same level of gaming as
FoW but looks a better WW2 game -
http://ironfistpublishing.com/