I remember playing Warcraft III (forgot which version) late 2000s. I felt that the game was something special, even though it wasn't graphically powerful as the high-end games I played at the time.
I don't have a lot of experience with Blizzard games otherwise... I'm still thinking if I should get into Diablo.
Thank you for your comment... What I can tell you is that the Warcraft III Saga is a very important symbol and icon in Gaming life. Its community is still quite big, in Asia the game is still very popular despite how old it is.
Diablo is a great game worth playing ;)