There's the question!
For me, I have to say Empire Earth 2 (2007 I think). For that game it hasn't been a very long test of time, but that was the first RTS I played and I fell in love with it and I still am in love with it. I can just pick that game up at any time of the day or night and be content with playing for hours on end. So what is the game for you? It has to be a game from at least a few years ago that today you still love. Games much older than a few years ago are welcome!!
For me, I have to say Empire Earth 2 (2007 I think). For that game it hasn't been a very long test of time, but that was the first RTS I played and I fell in love with it and I still am in love with it. I can just pick that game up at any time of the day or night and be content with playing for hours on end. So what is the game for you? It has to be a game from at least a few years ago that today you still love. Games much older than a few years ago are welcome!!