Vote for the best: PC

[Medieval Bob]

Here you are.

[Sovereign]

starcraft followed very closely by Diablo.

[undeadzombieguy]

Deus Ex.

[Thanatos]

Starcraft. I spent a good 4-5 years on that game. Now, it's just old and repetitive but in it's prime it kicked ass.

[pr0xy]

Deus Ex 4tw

[Hades-Knight]

You cant compare different types of games like that, thats an insult.

[HandOfHeaven]

Warcraft III: The Frozen Throne. I personally do not own the game, but I used to play it when my brother still lived at home, but haven't the cash to buy it on my own.