The best computer game that I have ever played has to be Freespace II what an epic story, I really felt like it should be made into a movie. To this day I think of it as the best space sim ever made, and may be the best game ever made
.Sadly I would have to say that the game I have spent most time playing is probably the pokemon series, I am ashamed of it - because it is a game that requires little skill I played through X and Y without losing a single pokemon battle. But for some reason I feel as though I have to play it.
For games in general (I don't know if computer games count as video games.)
I love Borderlands 2, Dragon Age Origins, Knights of the Old Republic, Mass Effect 2, Counter-Strike, chrono trigger, Final Fantasy VII and VIII, Portal, Portal 2 Command and Conquer, Command and Conquer Red Alert & Aftermath, Command and Conquer Red Alert 2 & Yuri's Revenge, Command and Conquer III (or Tiberium Wars) - that was my favorite game in the series. Rome: Total War, Sins of a Solar Empire, Freelancer.