...Has still not been beaten. It's still alive and kicking, thanks to it's awesome community. And it's called Company of Heroes. It has some great mods to keep it alive aswell. Although that isn't nessecary, because the vanilla game is awesome! It actually requires strategy for once! Spamming units isn't gonna cut it (Atleast not in skirmish / online), and you can win easily against a supremacy with the right tactics..
Each game is different, because of the 4 different armies, tons of different maps (That do make a difference! Some got alot of chokepoints, while others are open), different strategies from each player (You've got alot of sites where you can find hundreds of great strategies aswell, some that are best early-game, while others rely on late-game units.
Plus, you get xp for almost everything, destroying enemy buildings/units/wrecks (That can be recovered/salvaged by some armies), building defences / buildings / units. You can put this game in one of the 3 company's that comes with your army. For example, as America, you can choose for the Airborn (Which gets you some nice paratroopers that can be upgraded with Recoilles Rifles to take of those bugging light vehicles), or the Infantry Company (Which decreases the time unit production, and let's you build Howitzers for artillery support).
Ofcourse, the title is quite opinion-based, but it's really a great game. You get to replay some important history-events, and it's all quite realistic aswell. So go ahead to steam, and download the demo. And if you really like it, I suggest you buy the Gold edition for 15 dollars. This is the original game + the best expansion (Which adds the Panzer Elite and the Brits).
Enjoy!