I'd say its between DoW and Riddick. If you like multiplayer RTS go for DOW, the single player campaign is kinda half assed. It gives a good snapshot of playing with the marine army, but nothing of the other 3 forces. Riddick is only single player but it is a good single palyer game, kind of uncommon these days. Ut2004 is fun too, but lately I find myself liking the battlefield games more for multiplayer- the single player was too similar to the last 2 UT to buy it for single player alone.